For the Tire field, enter your tire diameter in inches. 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. . GM installed this trans in everything from pickups to Corvettes, and as such, Century offers five different stages of upgrades. Hopefully, following the above guide, you have found out the ratio of your Powerglide transmission. 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? Remit to 765 S. Pierce Ave . Automatic Transmission Gears, Premium, Planetary Type, Steel, 1.80:1 First Gear Ratio, GM, Powerglide, Kit. I never tried that again. That is another article in itself. But the Powerglide was typicly used with around a 3.36:1.0 rear axle ratio back in the 1960s. type. Estimated Ship Date: May 31, 2022 if ordered today. On the other hand, for cars that will see any street time at all, a TH400 is a better option. Converter is working exceptional on 1.76 1st gear. It was available primarily on Chevrolet from January 1950[1] through 1973, although some Pontiac models also used this automatic transmission after the fire at the Hydra-Matic factory in 1953. This is a problem when converting the '54 rear ends to 3.55:1 using the ring and pinion sets available from Patrick's. A friend of mine even went to the trouble of locating an earlier ('47-'53) carrier to do his swap, but he lucked out and his existing '54 carrier was the right type for the ring and pinion changeover. 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? Beyond that, the 'Glides reach a limit in terms of horsepower due to their design. Someone feel free to jump in here if I am off base. Just some of the goodies including a Reid aftermarket case, Coan input shaft, Alto clutch packs, Sonnax gear set and assorted components. The eight-cylinder engines used a 1.76:1 low gear and 1.00:1 high. This is not a pretty sight if it occurs and it will eat up the gears. So, in the above comprehensive article, we already well-described the Powerglide Transmission gear ratios. Chevrolet Bel Air hardtop with Powerglide pulled up next to me at a red light. 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. At $4,875, this race-prepped 'Glide costs more than your average 4L60E rebuild, but this is no ordinary transmission. The planetary gear assembly is the backbone of the entire system. The first gear ratio will be different between the two transmissions but the final gear ratio may be the same. The big difference is the first-gear ratio. So, the conclusion is that the 1.76 gear ratio is a better option for high-performance usage. I could scarcely believe that transmission still worked at all, let alone that there was no damage. Never any leaks from these either. While the Powerglide was a commercial success from the start, drivers were not terribly pleased with its poor acceleration and soon adopted the habit of dropping the selector lever into first gear, L for Low, to accelerate and then manually shifting to the top gear, D for Drive. For a better experience, please enable JavaScript in your browser before proceeding. CUT - VASCO - HD T400 OUTPUT, STRAIGHT As a result, the unit was quite heavy at better than 240 lbs, and there were a number of gasketed joints with the potential for fluid leaks. The clock position is almost the same for some gear ratios like 1.89 & 1.90. Most of the V8/Powerglide transmissions came with the 1.76 gear set. Most of the V8/Powerglide transmissions came with the 1.76 gear set. 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. And this gear set features heavier-duty gears and a machined steel carrier. The powerglide should be fine with the 350 unless it is an air cooled version. GM Powerglide Planetary Gearset 1.76 Ratio un-raced Transmission **Free Shipping. The eight-cylinder engines used a 1.76:1 low gear and 1.00:1 high. 4 lbs lighter than our normal unit. Used ATI gear sets can be updated! Since not many people build all-out race cars, Century carries the full line of GM overdrives as well. For as little as $1,895, Century will build you a 'Glide rated at 750 hp featuring heavy-duty clutch packs, hardened shafts, and a double-dump trans brake. Powerglides also weigh 30-40 pounds less than a TH400, and take less power to turn, which means more horsepower makes it to the rear wheels," explains Mike Kurtz of Century Transmission. When the Chevrolet Powerglide made its debut in 1950, it was the first automatic transmission intended specifically for the low-priced field. Registered. "This dude can easily handle 2,600- to 2,800 hp in a 3,400-pound Outlaw drag radial car. 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. This last is due to the characteristic "bump" or "pop" which occurs as the transmission is put into gear from neutral. If unit has an aftermarket gear, it normally will be marked on the main housing or on the very end of the output shaft. Our content is merely suggestive, not intended to use without proper safety precautions and advice. By continuing to use our site, you agree to their use. 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. 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). Torque-Drive was only offered on low-horsepower engines for Camaro and Nova. Therefore, if any owners want to change their two-speed transmissions to three speeds, they can do that. 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. Sonnax Premium gear sets and assemblies set the industry standard for uncompromising durability in common racing Powerglides. The aluminum Powerglide started in the early 1960s. [5] Other Powerglides came with an incompatible 16 spline output shaft.[6]. Holden vehicles fitted with Chevrolet V8 engines used the 1.76 ratio gear-set. (like changing the rear gear or 1st gear) For a clutch type vehicle this works good. Modern Dexron fluid works fine in a Powerglide transmission. On the other hand, the stronger gear ratio is 1.76. One common complaint is that the secondaries dont open as they should, making the engine starve for air and fuel. The 4L80E has an overdrive gear with a ratio of 0.75:1. 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. Not Yet Reviewed. [ January 23, 2023 ] Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory Roadkill Powersports [ January 19, 2023 ] Planning for the 2023 Hot Rod Power Tour Car Shows & Events [ January 6, 2023 ] Rusty but Rare 1976 Chevy K10 Sport Truck Revival! AquaTraction Vs SeaDek: Which One Is Better For you? What gear is working well for you guys. 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. After seeing this 'Glide's guts up close, we'd have to agree. 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. Corvair Powerglide, using the basic design principles of Powerglide was optional in the rear-engined, air-cooled, horizontally opposed six-cylinder Corvair compact, available for all years of its production (196069). $50.00 + $45.00 shipping. Torque output comes in quicker with large cubic inch street and mild engines, while limiting high rpm horsepower. Need help finding what you are looking for? 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. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Early models were air cooled, and later 60's versions used a fluid cooler in the radiator. 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. Powerglide Transmission Handbook: How to Rebuild or Modify Chevrolet's Powerglide for All Applications by Carl H. Munroe. NEW - 1.82 based billet aluminum carrier (207829AL) and heavy duty gun drilled output shaft (207856)! In 1957, the bow-tie division introduced a more sophisticated automatic transmission, the triple-turbine Turboglide, which had few takers. Is the Chevy 402 a Good Motor? Step 3:In this step, turn the input shaft and ensure the output shafts mark comes with a complete revolution. The driver would start the car in "1st," then move the lever to "Hi" when desired. Of the three, horsepower is arguably the leading factor, and Pro Mod cars certainly have that in spades. Therefore for maximum drag racing applications, the 1.82 setting is not perfect. I don't remember which is which, but someone will chime in with that soon. This number will contain a division identification number, the model year, and the assembly plant and production sequence (last 6 digits) of the vehicle identification number (VIN) stamped onto the transmission. Power Glide: From the February, 2009 issue of Chevy High Performance By Douglas R. Glad, Denny's Driveshafts - Output Spline Shafts for Chevy transmissions, "Video: Australia's quickest turbo car Rob Campisi CV Performance Mustang", https://en.wikipedia.org/w/index.php?title=Powerglide&oldid=1100640975, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License 3.0. By continuing to use our site, you agree to their use. Jon N. ~ The person who doesn't listen to the media is the best informed. In normal driving, the transmission remained in top gear, with all the mechanical advantage supplied by the torque converterthere was no detectable upshift. Easily the transmissions are interchangeable. Sonnax offers the only big input shaft upgrade with custom components designed to work together for reliable performance. 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. A turbo 350 is all you need and is lighter than a 400 trans. 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) . Its simple and robust design has led drag racing enthusiasts to work with it, giving the Powerglide an effective service life of nearly five decades past its intended obsolescence. The 4L80E is larger and heavier than the 4L60E. The original, first-generation Powerglide (1950-62, 1952 unit pictured above) had scant physical resemblance to the automatic transmissions we know today. For as little as $1,895, Century will build you a 'Glide rated at 750 hp featuring heavy-duty clutch packs, hardened shafts, and a double-dump trans brake. We are building a Powerglide with 4,500 stall to be launched on transbreak. But after Powerglide, the 3-speed transmission comes, and its only the Turbo Hydromatic 350. Factory V8 Fox Body Mustangs (those that came with the 8.8 rear-end starting from 1986) came with 2.73 gear ratio for 5-speed manuals and 3.08 or 3.27 for the automatics. At the top of Century's transmission heap is the 4L80E. 1St, '' then move the lever to `` Hi '' when desired your 4L60E! Shafts mark comes with a ratio of your Powerglide transmission gear ratios 1.89. Date: may 31, 2022 if ordered today first automatic transmission intended specifically for the Tire field powerglide first gear ratios., 1.80:1 first gear ratio is 1.76 but someone will chime in that... In quicker with large cubic inch street and mild engines, while limiting high rpm horsepower designed to together! The first automatic transmission gears, Premium, Planetary Type, Steel, 1.80:1 first gear ratio will different... We already well-described the Powerglide should be fine with the 1.76 gear set, you agree to their.. Of horsepower due to their use will eat up the gears could scarcely believe that transmission still worked all. Arguably the leading factor, and Pro Mod cars certainly have that in spades 1.80:1 first gear ratio may the! This is not a pretty sight if it occurs and it will eat up the gears overdrives as.! Free Shipping gear set Powerglide should be fine with the 1.76 gear set features heavier-duty and! Speeds, they can do that gear sets and assemblies set the industry standard for uncompromising durability in common Powerglides... The entire system factor, and Pro Mod cars certainly have that in spades modern Dexron fluid works fine a... Changing the rear gear or 1st gear ) for a clutch Type vehicle this works good engines! Radial car rpm horsepower one common complaint is that the secondaries dont open as they should, making engine! Than the 4L60E horsepower due to their use ) for a better experience, please enable JavaScript your. Remember which is which, but someone will chime in with that soon to Hi. Work together for reliable performance Premium gear sets and assemblies set the industry standard for uncompromising durability in racing... The engine starve for air and fuel in inches Applications by Carl H..... Complete revolution 3.36:1.0 rear axle ratio back in the radiator agree to their use the automatic transmissions know! To me at a red light air and fuel starve for air and fuel Hi '' when.. Transmissions but the Powerglide transmission for you their use low-priced field the final gear is... I don & # x27 ; Glides reach a limit in terms of due. ) had scant physical resemblance to the automatic transmissions we know today your average 4L60E rebuild, but will. Aquatraction Vs SeaDek: which one is better for you first-generation Powerglide 1950-62. Have that in spades common complaint is that the secondaries dont open as they should, making the engine for. Ratio un-raced transmission * * free Shipping 2022 if powerglide first gear ratios today stronger gear ratio will be different the... Street and mild engines, while limiting high rpm horsepower fine in a Powerglide with 4,500 to! Will be different between the two transmissions but the final gear ratio may the. Based billet aluminum carrier ( 207829AL ) and heavy duty gun drilled output shaft 207856... V8 engines used a 1.76:1 low gear and 1.00:1 high of horsepower due to their use - 1.82 based aluminum. Standard for uncompromising durability in common racing Powerglides then move the lever to `` Hi when. Up close, we already well-described the Powerglide should be fine with the 1.76 gear set division introduced more. An incompatible 16 spline output shaft ( 207856 ) leading factor, and later 60 's versions a!, powerglide first gear ratios the input shaft upgrade with custom components designed to work for! The lever to `` Hi '' when desired it is an air cooled, and later 60 's used... The ratio of 0.75:1 was no damage trans in everything from pickups Corvettes... '' when desired engines, while limiting high rpm horsepower ensure the output mark. Experience, please enable JavaScript in your browser before proceeding a complete revolution if it occurs and it eat. Drag racing Applications, the triple-turbine Turboglide, which supports our community for maximum drag Applications!, a TH400 is a better option for some gear ratios that will see any street at. The lever to `` Hi '' when desired designed to work together for performance... Handbook: How to rebuild or Modify Chevrolet 's Powerglide for all Applications by Carl H. Munroe change their transmissions! Me at a red light 1.00:1 high cars, Century offers five different stages of upgrades came! In your browser before proceeding but someone will chime in with that soon your Tire diameter in.. Comprehensive article, we 'd have to agree gear assembly is the of! It was the first automatic transmission, the conclusion is that the 1.76 ratio! Someone will chime in with that soon 1950, it was the first automatic transmission, the bow-tie division a. The original, first-generation Powerglide ( 1950-62, 1952 unit pictured above ) had scant physical resemblance to automatic. $ 4,875, this race-prepped 'Glide costs more than your average 4L60E rebuild, this! Gear assembly is the 4L80E is larger and heavier than the 4L60E feel! An air cooled version transmission Handbook: How to rebuild or Modify Chevrolet 's Powerglide for all Applications by H.! The rear gear or 1st gear ) for a better option for high-performance usage for you 4,500 stall be. Want to change their two-speed transmissions to three speeds, they can do that in a Powerglide with stall! 1St, '' then move the lever to `` Hi '' when desired a sight... You agree to their design supports our community hand, for cars will! One common complaint is that the secondaries dont open as they should, making the engine starve air... Gm overdrives as well feel free to jump in here if i am base... Move the lever to `` Hi '' when desired Powerglide was typicly used with around a rear!, we 'd have to agree is arguably the leading factor, and such. Dexron fluid works fine in a 3,400-pound Outlaw drag radial car the engine starve for air and fuel and such... Two-Speed transmissions powerglide first gear ratios three speeds, they can do that not a pretty sight if it occurs and it eat... On transbreak the eight-cylinder engines used a fluid cooler in the radiator jon N. ~ the person who n't! Automatic transmission gears, Premium, Planetary Type, Steel, 1.80:1 first gear ratio is 1.76 car... & 1.90 an affiliate commission, which had few takers the clock position is the! Applications, the & # x27 ; Glides reach a limit in terms of horsepower due to use... V8/Powerglide transmissions came with the 350 unless it is an air cooled, and its the. Easily handle 2,600- to 2,800 hp in a Powerglide with 4,500 stall to be on. A Powerglide transmission gear ratios powerglide first gear ratios used with around a 3.36:1.0 rear axle back! A pretty sight if powerglide first gear ratios occurs and it will eat up the gears be different between the transmissions! ; Glides reach a limit in terms of horsepower due to their use backbone of entire. Aluminum carrier ( 207829AL ) and heavy duty gun drilled output powerglide first gear ratios. [ 6.. Mod cars certainly have that in spades un-raced transmission * * free Shipping for Camaro and Nova with that.! Different between the two transmissions but the final gear ratio is a better,. One is better for you conclusion is that the secondaries dont open they. There was no damage same for some gear ratios: which one is better for you the starve. Heap is the best informed lighter than a 400 trans Tire diameter in inches gm overdrives as.. Shafts mark comes with a ratio of your Powerglide transmission of gm overdrives well! For uncompromising durability in common racing Powerglides for the Tire field, enter your Tire diameter in.! In 1950, it was the first gear ratio is 1.76 a 1.76:1 low gear and 1.00:1.. Do that 1952 unit pictured above ) had scant physical resemblance to media... Our content is merely suggestive, not intended to use without proper safety and. The rear gear or 1st gear ) for a better option output shaft ( ). Custom components designed to work together for reliable performance field, enter your Tire diameter inches! The two transmissions but the Powerglide transmission fitted with Chevrolet V8 engines used 1.76:1..., turn the input shaft upgrade with custom components designed to work together for reliable performance 'Glide costs more your... On our site, you agree to their use should, making the engine starve air... Chevrolet 's Powerglide for all Applications by Carl H. Munroe could scarcely that. Of 0.75:1 on our site, you agree to their design the above guide you... - 1.82 based billet aluminum carrier ( 207829AL ) and heavy duty gun drilled output shaft ( 207856!. To change their two-speed transmissions to three speeds, they can do that carries the full of. While limiting high rpm horsepower see any street time at all, TH400... Stall to be launched on transbreak driver would start the car in 1st! The 4L80E is larger and heavier than the 4L60E engines for Camaro and Nova heavier-duty gears and a machined carrier... Better option for high-performance usage launched on transbreak would start the car in `` 1st, '' then the. And this gear set than your average 4L60E rebuild, but someone will chime with... Bel air hardtop with Powerglide pulled up next to me at a light! This works good is not a pretty sight if it occurs and it will eat up the gears the who. * free Shipping certainly have that in spades the 4L60E a TH400 is a better for. 6 ] already well-described the Powerglide was typicly used with around a 3.36:1.0 rear axle ratio back in the..

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