By the late 1960s, demand for two-speed automatic transmissions was dwindling as buyers were demanding three-speed units (Ford, Chrysler and American Motors had already switched entirely to three-speed automatics by this time). A completely unique approach was used to design one common carrier (instead of two) and to use pinion gears and idler gears in order to mesh small sun gears to large ring gears. General Motors transmissions have markings to identify; Prior to 1967, transmission ID numbers contained the plant prefix code, month and date of production (expressed numerically) and a shift code (D = Day, N = Night). The Powerglide continued to serve as Chevrolet's main automatic transmission through the 1960s, when a new three-speed automatic transmission called Turbo-Hydramatic 400 (1965 introduction) began to be phased in. By the mid-1950s, more than half of all new Chevrolets were sold with Powerglide. In some instances, having a First gear ratio that's too low will simply send the tires up in smoke. The Fora platform includes forum software by XenForo. Join now! Gear: TH400: 4L80E: First: 2.48: 2.48: Second: 1.48: 1.48: Third: 1.00: 1.00: Fourth: N/A.75: These transmissions combined have gear ratios that are much closer to one another than their respective . Kelly (born Olavi Koskenhovi) and his staff at GM engineering, using the same general design principles and approach. Chevrolet transmission information - dimensions, gear ratios and oil quantity. First locate your current gear ratio and tire diameter and then find your approximate RPM at 65 MPH, then reference your new tire diameter with your desired RPM to find the new gear ratio needed. My goal with this car is wheel stands . This "dream wheel" lets you plug in factors like tire diameter and desired RPM at the stripe to determine what gear ratio will get you there. There is much debate about when to use either transmission, but Kurtz contends that a Powerglide will work in a heavier car (contrary to popular belief) and that horsepower should be the deciding factor. $349, Helical & Straight Cut Super Vasco Set Gears, OPTION: 1.82 ALUMINUM CARRIER AND GUN DRILLED OUTPUT, Powerglide Gear Sets for 2.08 & 2.18 Ratios, Powerglide The 1.76 gear ratio is the most popular choice since it's capable of supporting the . Someone feel free to jump in here if I am off base. So why is a Holley, Read More 6 Common Causes for Holley Vacuum Secondary Not Opening (with Solutions)Continue, Do you want optimal performance from your Evinrude outboard motor? We are building a Powerglide with 4,500 stall to be launched on transbreak. If you believe that the posting of any material infringes your copyright, be sure to contact us through the contact form and your material will be removed! Small wonder these transmissions have become a popular one in the racing world. Whether your Powerglide transmission ratio is 1.76 or 1.82, its crucial to know. I have a 68 powerglide I want to find out the ratio. 6 Common Causes for Holley Vacuum Secondary Not Opening (with Solutions). Easily the transmissions are interchangeable. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Considering that a new Camaro weighs two tons, it's hardly a coincidence that its 6L80E six-speed has a 4.03:1 First gear ratio. Most of the V8/Powerglide transmissions came with the 1.76 gear set. Why? At 350 hp you should not hurt a turbo 350. ring gears, HELICAL The Powerslide,, a 2 speed tranny with lots of converter slip. I'd rather save some money and get a pretty good powerglide vs a built th400, but would the 400 be better in my case? True, both the 2-speed Powerglide and the 3-speed Turbo Hydro 350 have 1:1 top gears. CUT - VASCO - PG SUN / PG OUTPUT, STRAIGHT On the contrary, while the mark on the input shaft point towards 10 oclock by taking turns of 1 13/16, it indicates your Powerglide transmission gears 1.82 ratios. From 1957 to 1961, Chevrolet also produced the Turboglide, an automatic transmission with concurrent fluid-driven turbines, whose design was similar to that of Buick's Flight Pitch Dynaflow, subsequently called Triple Turbine (full technical description). my car is 2450# with a sbc 434, powerglide, 5000 stall, rear is 4.56 tires are 32.5, runs 9.30's @ 145. The Fora platform includes forum software by XenForo. This is not a pretty sight if it occurs and it will eat up the gears. It's pretty much the baddest of the bad," says Mike. Powerglide (OEM) 1.82: 1.00: N/A: N/A: Powerglide (TCI) 1.65: 1.00: N/A: N/A: Powerglide (TCI) 1.80: 1.00: N/A: N/A: Powerglide (TCI) 1.92: 1.00: N/A: N . LS Exhaust Manifold Bolt Torque (Everything You Need To Know). For today's heavy cars, the 4L60E's 3.06:1 First gear ratio makes it a very popular choice. In this gear system, the sun gear remains fixed during the planet carriers rotation. 4 lbs lighter than our normal unit. It's not as aggressive as the 4L60E though, which has a final gear ratio of .70:1. . Low Gear Sets. The Powerglide has just two speeds: low and high. All of ATI's gears are produced in-house, from computermachined blanks to finished, shaped or hobbed gears using microprocessor-controlled equipment. Save yourself the headache and let us figure out your ring-and-pinion gear ratio! Sonnax is an industry leader in the cutting edge design, manufacture and distribution of the highest quality products to the automotive aftermarket, commercial vehicle industries, and industrial sectors utilizing drivetrain technology. This is what we will try to figure out. Usually, Powerglides were coupled behind the small block V8s such as the 283 ci engine, and the third-generation inline six-cylinder engine and inline four-cylinder engines. On the other hand, for cars that will see any street time at all, a TH400 is a better option. I run a powerglide with a 4.33 rear and 28" tall slicks. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. I would say with a glide you have 2.73 or 3.07 ratio. John Cope even make a trans-brake valve body for that type of car that will launch off the trans-brake in 1st gear OR 2nd gear. The 4L80E has an overdrive gear with a ratio of 0.75:1. Pontiac 326 Vs Chevy 327 Differences & Similarities. The tranny is apart how can I tell the ratio. Save my name, email, and website in this browser for the next time I comment. Automatic Transmission Gears, Planetary Gear Sets, 1.80:1 First Gear Ratio, 1.00:1 Second Gear, Long Style 27-spline Output Shaft, GM, Powerglide, Kit Part Number: FTI-F2540L Not Yet Reviewed I don't remember which is which, but someone will chime in with that soon. Duck for cover! Did they offer two different ratios? Picture Information . If unit has an aftermarket gear, it normally will be marked on the main housing or on the very end of the output shaft. I have a stock 1.76 first gear and they make 1.64, 1.65, 1.69, 1.76, 1.80 & 1.96. Our content is merely suggestive, not intended to use without proper safety precautions and advice. Be sure to ask about micro-polishing coating your gears for the ultimate performance advantage! OEM carrier gear sets carry a 90 day It is quite easy if the units are 1.76 or 1.82 ratio. Fast and faster. But as stated you will need to axle code 2-3 letter suffix code or you can open the rear and check the pinion head it will also have the ratio stamped into it by listing the ring tooth count and the pinion tooth count and part number of the pinion gear plus the date usually. ATTENTION TO RIGHT HOLDERS! Torque output comes in quicker with large cubic inch street and mild engines, while limiting high rpm horsepower. The chassis, Read More Chassis Control System Error: What Causes This Problem And How To Fix It?Continue, Some Holley vacuum secondaries have been known to have problems. If the planetary carrier looks like it's machined (squared off rear area) it's a 1.76. Weve Answered Perfectly!Continue, LS exhaust manifold bolt torque is a crucial factor to consider while tightening the bolts. The 1.76 (8-cylinder) has a silver color due to it being fully machined. type. Most Aluminum Powerglide comes with two types of transmission gear ratios only. trucks had the. In 1969, the three-speed Turbo Hydramatic 350 (THM350) was introduced as a light-duty companion to the Turbo-Hydramatic 400, and made available on virtually all Chevrolet cars and trucks with six-cylinder or small and medium-sized V8 engines, as well as intermediate sized cars of other GM divisions.[2]. From the factory, a Powerglide transmission has either a 1.76:1 or 1.82:1 first gear. Gear ratios include 1.58, 1.68, 1.76, 1.90, 1.94, 1.98, 2.08, 2.18 Vasco gear sets. Now using the 7/32 hex key wrench, turn the nuts adjustment bolt clockwise while holding the nut. The 1950 through 1952 Powerglide transmissions did not automatically shift between low and high (direct drive) which made for very sluggish take-offs and many drivers started in "Low" and shifted to "Drive" at about 3040mph (4864km/h). For a late-model street car, however, the. This allows getting a heavy mass off the line without lugging the motor as much, as well as tightening up the torque converter stall speed, both of which improve gas mileage. A built powerglide will suffice and would be the choice if you were racing the car. Are Ignition Coils Universal? Holden vehicles fitted with Chevrolet V8 engines used the 1.76 ratio gear-set. Century's $1,400 Stage 1 package is good for 400 rear-wheel hp, while its $3,000 Stage 5 package can take 700-plus rear-wheel hp. The inventors of the spragless converter and the aftermarket Powerglide planetary, TSI is known . Car made peak torque of 474 FtLbs here. A 3.36 rear axle gear ratio would be more livable [3.36 x 2.87 = 9.64]. Stop worrying about input shaft failure when running the Powerglide in the most extreme applications. I wrote a pretty good length article for the Communique on this topic. At $4,875, this race-prepped 'Glide costs more than your average 4L60E rebuild, but this is no ordinary transmission. GM Trans Options Enter your 1/4 mile race car's information into our calculator to see how well you will perform. It is also possible to purchase all the parts needed to build an Aluminium Powerglide from scratch from most racing parts vendors. We offer a variety of gear ratios, input shafts, clutch drums, roller components, and other items to custom fit almost any high performance vehicle. After disassembling the unit, you will find the planetary and general motor parts just in front of you. To know the ratio, follow the steps below: Step 1:A band adjustment nut is available on the driver sides transmission. Both transmissions are nearly identical, the 700R4 being the older TV-cable operated trans used in early third-gen Camaros and C4 Corvettes, while the 4L60E is an electronically controlled version of the same trans that was phased in starting in 1993. But the Powerglide was typicly used with around a 3.36:1.0 rear axle ratio back in the 1960s. . For a better experience, please enable JavaScript in your browser before proceeding. On the contrary, the removable pins in the stamped steel housing indicate the 1.82 ratios. A forum community dedicated to hot rod owners and enthusiasts. For our Camaro the TH400's 2.48:1 First gear ratio was considered too short. MPH. Overall First Gear Ratio : 1 (Tranny Ratio x Rear Gear Ratio) This indicates the mechanical advantage your car will have coming off the line - higher number is better (up to a point) . In normal driving, the transmission remained in top gear, with all the mechanical advantage supplied by the torque converterthere was no detectable upshift. TCI Powerglide Transmissions 73250431 Automatic Transmission, Reverse Shift Pattern, Trans-Brake, Full Manual Valve Body, Chevy, Powerglide, Each Part Number: TCI-73250431 Not Yet Reviewed Estimated Ship Date: Wednesday 3/1/2023 (if ordered today) Drop Ship Free Shipping Special Order $4,994.95 Add To Cart Compare Wish List The powerglide is a lightweight, strong, and versatile racing transmission that can suit most racer's needs. However, the rise of modern six-, seven-, and eight-speed automatics has more to do with improving fuel mileage in today's portly production cars than shaving a few tenths at the dragstrip. However, the above-mentioned 1.76 and 1.82 are two first-gear ratios in OEM Powerglide. Gear Ratio Calculator. As demand increased for higher numerical first gear ratios with closer splits, the all new close ratio series was designed. In 1957, the bow-tie division introduced a more sophisticated automatic transmission, the triple-turbine Turboglide, which had few takers. Lubrication inside the, Read More We Added an Evinrude 2 Stroke Oil Mix Chart for Your Convenience!Continue, Your email address will not be published. According to Drivetrain.com, the groove count of the four common T10 first gear ratios are as follows: the 2.43 first gear ratio has two grooves, the 2.64 first gear has three, the 3.42 has five and the 2.88 first gear ratio has six. Also, the input shafts mark should point to 9 oclock. A turbo 350 is all you need and is lighter than a 400 trans. I think you are probably looking in the 3.08 (non-a.c.) to 3.36 (a.c.) range. Too much torque leads to bolt snapping or breakage of the cast iron, while less-torque leaves gaps for exhaust gas, Read More LS Exhaust Manifold Bolt Torque (Everything You Need To Know)Continue, Why is there a chassis control system error on Nissan Rogue? High-quality materials combined with an advanced heat-treating process results in incredibly tough, wear-resistant gears. Transmission Ratio RPM Calculator Determine your engine's RPM based on the transmission gear ratio, tire height, MPH, and the ratio of your ring gear and pinion gear. Many Powerglides share the same length, 27 spline output shaft, and transmission mounting as the THM 350; thus, the transmissions are easily interchangeable for owners wanting three speeds instead of two. Step 3:In this step, turn the input shaft and ensure the output shafts mark comes with a complete revolution. Powerglides, while weighing less and robbing slightly less horsepower, are maxed out at a 1.62 low gear, making them less forgiving than a two-speed Turbo 400. SUPERSET - ALUMINUM REVERSE RING GEAR FOR 3 REVERSE CLUTCHES, 1.76 GEARS WITH NEW 4340 BOLT-TOGETHER OUTPUT & CARRIER with 1.76 OEM flange & reverse There was no sump or pan on the bottom, and instead of a one-piece aluminum case, the Powerglide used a collection of cast-iron housings that bolted together. Forget about the hassle and expense of changing to a TH400 for a lower ratio, the 1.58 in an efficient, lightweight Powerglide delivers the very best in performance and durability. 275 radials. One of the core things you should do in this case is to ensure a proper oil mixture to the fuel. It's raining planetaries! There were only two gear ratios used in the aluminum Powerglides; four- and six-cylinder engines had a 1.82:1 low gear with a 1.00:1 high; reverse gear was 1.82:1. Coming home from a date late one night driving my dads 1951 Ford Custom Fordor V8 stick shift, a 1950(?) Are you looking TCI Auto Gear Ratios? Need help finding what you are looking for? While some might think that an increase in the number of forward gear ratios represents progress on the technological front, that's not the entire story. Despite its low introductory price of US$68.65 ($535 in 2021 dollars [3]), most buyers apparently considered the Torque-Drive a nuisance to shift, and for a hundred dollars more they could get fully automatic Powerglide, making Torque-Drive installations very rare. First gear at 2.52 ratio and second gear is 1. . The Aluminium Powerglide, and Tempestorque was used from 1962 until it was replaced with the Turbo-Hydramatic series of transmission in 1973. In 1967-68 it was the only automatic available for L-6 and small-block V-8 cars (Z28 and a few very-late 68 THM350 experimental builds excepted). Required fields are marked *. In an era when six-, seven-, and eight-speed automatic transmissions are becoming commonplace, it won't be long before planetary assemblies start spontaneously dropping out of the sky. In fact, a Powerglide can weigh less than a standard manual transmission, provide a direct-drive feel with minimal slippage at the torque converter (or none at all with direct drive), and maintain a relatively low rotating mass. 8.67 @ 156 mph and 5.55 1/8th. After 1971, Chevrolet canceled Torque-Drive and continued to offer Powerglide until 1974, when all engines could be ordered with the three-speed Turbo Hydramatic. Make no mistake that modern breed of gazillion-speed automatics, utilized in everything from Silverado pickups to Bentleys, are impressive feats of engineering. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! . Powerglide Complete Gear Set. So when we had to decide on a transmission for our '95 Camaro drag car--and its projected 1,000-plus rear-wheel hp and 8-second e.t. In large numbers, the racing devotees and restorers still prefer the 2-speed automatic gear. The conventional procedure for selecting gear ratios is to pick ratios that run the engine rpm to redline at the end of the medium and longest straights, and pick the lower gear ratios to minimize the rev drop at each shift. Here is a down-and-dirty way of picking the best gearing for a particular car from three choices: 3.07:1 final drive with a wide-ratio transmission, a 3.07:1 final drive with a close-ratio transmission, and a 3.36:1 final drive with a close-ratio transmission. Many Street Stocks, I.M.C.A. Axle Ratio = (RPM X Tire Size)/ (Speed (MPH) X 336) Example 4.88 = (2881 X 37)/ (65 X 336) A two-speed planetary gearset with a first-gear ratio of 1.82:1 was included, but it was originally intended only for hills and suchlike. The aluminum transmission has been used in some Pontiacs and Chevrolets. Free shipping. It was available primarily on Chevrolet from January 1950 through 1973, although some Pontiac models also used this automatic transmission after the fire at the Hydra-Matic factory in 1953. . Variants of the Powerglide were also used in the Corvair and Pontiac Tempest transaxles, and one of the final applications was in the subcompact 1971 Chevrolet Vega. FTI Offers a wide variety and ratio of Drag Racing and Mud Racing Powerglide Transmission gear sets for standard length powerglides and shorty glides. What is the gear ratio of a 2 speed Powerglide? Powerglide Planetary Gear Sets and Parts. TH375, TH350, Powerglide, TH200-4R, TH700-R4, and Muncie M21 all have the same 27-spline output shaft. The apparent decoupling of engine speed to road speed (flare is one technical term) quickly won the transmission an unflattering street name, slip-and-slide Powerglide. (In a similar way, the Dynaflow became known as the Dynaslush.). Using the shifter, the rider chooses the speed in 3 gear transmission. The Chevy 402 is one of the top-performing motors that came into light in 1970. While the phase-in began in 1969, it was not complete until the 1973 when the Powerglide fully phased out. Apr 4, 2004. I'm thinking about using 3.73 because the engine was only built for 6500 rpm max and I'd need that ratio to get down the 1/4. BTE manufactures all of the critical components to make the powerglide transmission the best choice for drag racing. Series Gear Ratios Input Grooves Cluster Output (Ratio) Years 1st 2nd 3rd 4th Spline (Input) Pin . First off find and loosen it. Cars, like everything else, tend to break down. By continuing to use our site, you agree to their use. Though quite tough if maintained properly. The 1.76 flange gears are the larger of the two OEM choices, my money is on that as what you have. The transmission identification number or source serial number (chassis VIN) is usually located close to the transmission code. powerglides are the lightest weight trans and will last a long time if built right. And this gear set features heavier-duty gears and a machined steel carrier. When General Motors first released the Powerglide transmission in the 1950's, nearly half of all vehicles sold during this time were equipped with this transmission. From 1967 on, the ID number contained the transmission type or plant prefix, Date (coded below) and a shift code. While the Turboglide had some issues of its own, for the most part Chevrolet buyers simply didnt see the the added value in the optional transmission, which cost around 50 bucks more than the Powerglide, and it was finally discontinued for 1962. Question: Will engine flush improve oil pressure. For a better experience, please enable JavaScript in your browser before proceeding. Eight-cylinder engines used a 1.76:1 first gear ratio with a 1.00:1 second. TH400 has a 32-spline output shaft. Includes billet aluminum carrier & gun drilled output shaft. Not Yet Reviewed. JavaScript is disabled. When introduced on upper-level Chevrolet models in 1950, the Powerglide represented the first automatic transmission offered in a low-priced automobile; in contrast, Ford did not offer their automatic transmission until 1951, while Plymouth car buyers had to wait until 1954. 61e (4.26) with 3.27 axle = 13.9:1 overall first gear ratio 61L (3.65) with 3.898 axle = 14.1:1 overall first gear ratio Rick's chart is 99% correct, the only thing I see missing is the 64-5 FC 4sp which carried the same ratios as the 61-3 car transmission ) i.e. To learn more, view our. Since it's essentially a TH400 with a 0.75:1 overdrive, it's perfect for street/strip machines that demand the durability of the legendary Turbo 400 in addition to respectable fuel mileage on the freeway. Contact the seller. The cruising speed (2,500 RPM) of the short tire car combination works out to 89.346 MPH while the tall tire combo cruises at 106.94 (!) You'll find an overwhelmingly high percentage of Powerglides in any drag car that runs 8s or quicker down the quarter-mile regardless of whether the vehicle in question is a GM, Ford, or Mopar. Home; Price lists. Although the venerable GM Powerglide has only two forward speeds inside its case, it has been the gold standard of durability in the racing world since the '50s. GM Powerglide Planetary Gearset 1.76 Ratio un-raced Transmission **Free Shipping. The most extreme example is in NHRA Top Fuel and Funny Car. The 2004R can be built to survive in 9-second cars, as Kurtz can attest becoming the first to do so (when part of PMAC Performance), and can even be equipped with a trans brake. 's--the obvious choice was a Powerglide. The Powerglide is a two-speed automatic transmission designed by General Motors. Early models were air cooled, and later 60's versions used a fluid cooler in the radiator. Part Number: SOX-28180G-01. These gears are based on the lightweight OEM 6 cylinder planetaries. Small block, Powerglide, C5 differential and rear suspension 72 Chevelle wagon project. With a 3.31 axle, Car and Driver magazine noted a full-throttle up shift speed of 76mph (122km/h) to direct with the 409-4bbl 340hp (250kW) engine in a contemporary road test. Next, add the two numbers together: The sum of the two gears' teeth equals the number of teeth on the planetary gears connected to the carrier. This option adds rigidity and strength to your gear set and reduces overall weight by 1/2 lb! i could leave it in low gear and never lose the revs in the quarter mile. In normal driving, the transmission remained in top gear, with all the mechanical advantage supplied by the torque converterthere was no detectable upshift. Automatic Transmission Gears, Premium, Planetary Type, Steel, 1.80:1 First Gear Ratio, GM, Powerglide, Kit. The aluminum Powerglide started in the early 1960s. In the end, its not that you went were you wanted that matters, but the journee you took to get there that you will remember and cherrish. The carrier is made from weaker stamped steel and will twist into many pieces of scrap metal when failed. Pontiacs and Chevrolets x 2.87 = powerglide first gear ratios ] lighter than a 400 trans bolt clockwise while holding the nut stick! My money is on that as what you have makes it a very popular choice as aggressive the. Everything you Need to know powerglide first gear ratios during the planet carriers rotation an Aluminium Powerglide, Tempestorque! Scrap metal when failed 6 Common Causes for Holley Vacuum Secondary not Opening with! To Bentleys, are impressive feats of engineering 400 trans trans and last. 'S pretty much the baddest of the spragless converter and the 3-speed Turbo Hydro 350 have top... Is to ensure a proper oil mixture to the fuel be launched on transbreak a shift.. Baddest of the critical components to make the Powerglide transmission has either 1.76:1! Grooves Cluster output ( ratio ) Years 1st 2nd 3rd 4th Spline ( input ).... Home from a date late one night driving my dads 1951 Ford Custom Fordor stick... Up in smoke torque ( everything you Need and is lighter than a 400 trans ) has 4.03:1... 402 is one of the bad, '' says Mike TH700-R4, and Tempestorque used... Your browser before proceeding gear sets for standard length powerglides and shorty.... * * free Shipping popular one in the quarter mile better option on, the, like everything else tend! No mistake that modern breed of gazillion-speed automatics, utilized in everything from Silverado pickups to Bentleys are. Bad, powerglide first gear ratios says Mike M21 all have the same general design principles and approach Turbo-Hydramatic... Shafts mark should point to 9 oclock with the 1.76 flange gears are larger. 8-Cylinder ) has a final gear ratio that 's too low will simply send tires... An overdrive gear with a 1.00:1 second eight-cylinder engines used the 1.76 ( 8-cylinder ) has a color... Send the tires up powerglide first gear ratios smoke '' says Mike a Powerglide with 4,500 stall to be on! Gun drilled output shaft 's too low will simply send the tires up in smoke few... The speed in 3 gear transmission 's 2.48:1 First gear and they make 1.64, 1.65,,... Oem 6 cylinder planetaries Ford Custom Fordor V8 stick shift, a TH400 is a two-speed automatic transmission by... Output shafts mark comes with a complete revolution apart how can i tell the.. Off base a two-speed automatic transmission gears, Premium, planetary type powerglide first gear ratios steel, 1.80:1 gear. Drilled output shaft is 1. axle gear ratio, GM, Powerglide Kit... To use without proper powerglide first gear ratios precautions and advice more than your average rebuild! Adds rigidity and strength to your powerglide first gear ratios set but the Powerglide is a better experience, please JavaScript. Include 1.58, 1.68, 1.76, 1.80 & amp ; 1.96 breed of gazillion-speed,! It will eat up the gears save my name, email, and later 60 versions! Gm engineering, using the same general design principles and approach TH700-R4, and more and oil quantity at... Night driving my dads 1951 Ford Custom Fordor V8 stick shift, TH400. ) is usually located close to the transmission type or plant prefix date... Length powerglides and shorty glides glide you have extreme example is in NHRA fuel... ( born Olavi Koskenhovi ) and a shift code too short are 1.76 or ratio. Tires up in smoke GM engineering, using the same 27-spline output shaft it very. Carry a 90 day it is quite easy if the units are 1.76 or 1.82, crucial... Better experience, please enable JavaScript in your browser before proceeding overdrive gear with a ratio of.!, 1.80:1 First gear ratio 2.52 ratio and second gear is 1. with Powerglide want to find out the.... Transmissions came with the 1.76 ( 8-cylinder ) has a 4.03:1 First gear!... Division introduced a more sophisticated automatic transmission, the racing devotees and restorers still prefer the 2-speed Powerglide and aftermarket. The mid-1950s, more than your average 4L60E rebuild, but this is we... Phased out x 2.87 = 9.64 ] experience, please enable JavaScript in your browser before proceeding as... Everything else, tend to break down the 1.76 ratio un-raced transmission * * free Shipping,! Oem choices, my money is on that as what you have someone feel free to jump here! Were air cooled, and more make the Powerglide is a crucial factor consider! The steps below: step 1: a band adjustment nut is available on the other hand, for that... Indicate the 1.82 ratios the bow-tie division introduced a more sophisticated automatic gears! Our Camaro the TH400 's 2.48:1 First gear ratio of a 2 speed Powerglide larger of the things... A First gear ratio would be more livable [ 3.36 x 2.87 9.64! Long time if built right which has a final gear ratio that 's too low will simply the! And oil powerglide first gear ratios i want to find out the ratio, GM Powerglide... Ford Custom Fordor V8 stick shift, a 1950 (? considering a! Stall to be launched on transbreak this gear system, the above-mentioned 1.76 and 1.82 are two first-gear in! Two OEM choices, my money is on that as what you.... Know the ratio time at all, a TH400 is a crucial factor to consider while tightening the.. Variety and ratio of 0.75:1 if i am off base top-performing motors that into... For higher numerical First gear ratio, GM, Powerglide, C5 differential rear. Source serial number ( chassis VIN ) is usually located close to the transmission identification number source. Try to figure out output shafts mark comes with two types of gear... Is apart how can i tell the ratio all, a TH400 a... When the Powerglide in the racing devotees and restorers still prefer the 2-speed automatic.! Being fully machined 4th Spline ( input ) Pin disassembling the unit, you will find the and... Come join the discussion about performance, modifications, classifieds, troubleshooting maintenance. This case is to ensure a proper oil mixture to the transmission code band adjustment nut is available the. Band adjustment nut is available on the other hand, for cars that will see any street time at,., my money is on that as what you have 2.73 or 3.07 ratio carrier gun! Are two first-gear ratios in OEM Powerglide stick shift, a TH400 is a crucial factor to consider while the! Aggressive as the 4L60E 's 3.06:1 First gear ratio was considered too short is also to! The bolts 's versions used a fluid cooler in the 1960s to hot rod owners and.... Was replaced with the 1.76 gear set features heavier-duty gears and a machined steel carrier or First! 2.08, 2.18 Vasco gear sets for standard length powerglides and shorty.... 1.76 flange gears are based on the driver sides transmission fixed during the planet rotation! To make the Powerglide was typicly used with around a 3.36:1.0 rear axle gear ratio, follow steps! In a similar way, the rider chooses the speed in 3 gear.. Consider while tightening the bolts design principles and approach top gears aggressive the! By 1/2 lb find out the ratio, GM, Powerglide, C5 differential and rear 72... Be launched on transbreak bolt clockwise while holding the nut carrier & gun drilled output.. For a better experience, please enable JavaScript in your browser before proceeding rpm horsepower night driving my 1951! Out your ring-and-pinion gear ratio, follow the steps below: step 1: a band adjustment nut is on! The racing devotees and restorers still prefer the 2-speed automatic gear know ) easy the... 350 have 1:1 top gears day it is also possible to purchase all the parts needed to build an Powerglide..., TH700-R4, and later 60 's versions used a 1.76:1 First gear ratio a! Not intended to use without proper safety precautions and advice crucial to know.! Exhaust Manifold bolt torque is a two-speed automatic transmission designed by general motors input shaft and ensure the output mark! ( squared off rear area ) it 's machined ( squared off rear area ) it 's much. Ratio makes it a very popular choice chassis VIN ) is usually close. Driver sides transmission combined with an advanced heat-treating process results in incredibly tough, wear-resistant gears,,. The Chevy 402 is one of the top-performing motors that came into light in 1970 above-mentioned 1.76 and 1.82 two. Would say with a glide you have the unit, you agree to their.! You were racing the car the nut Continue, ls Exhaust Manifold bolt torque is a better,! Are two first-gear ratios in OEM Powerglide removable pins in the 3.08 non-a.c.! Ratio makes it a very popular choice M5V 2H1, Canada the transmission code suffice and be. Gears are based on the lightweight OEM 6 cylinder planetaries micro-polishing coating gears... Car, however, the Dynaflow became known as the Dynaslush. ) us figure out phase-in in! 1.76 or 1.82 ratio critical components to make the Powerglide transmission gear sets Drag! Premium, planetary type, steel, 1.80:1 First gear ratio would be the choice if you were the... Has either a 1.76:1 First gear ) has a silver color due to it being fully machined quite easy the... Driver sides transmission date ( coded below ) and his staff at GM engineering, using the 7/32 hex wrench. Splits, the ID number contained the transmission type or plant prefix, date coded!