CUT - VASCO - HD T400 OUTPUT, STRAIGHT Generally a.c. cars had a lower gear ratio. originally a 3-speed. The 1.82 (6-cylinder) had a bluish color or dark. Casting numbers on the case and extension housing. For the ultimate in overdrive performance, Century offers both 4L80E and 6L80E packages. They were also used with Nova engines in the DJ-5A Jeeps produced 1968-1970 by Kaiser-Jeep and widely used as delivery vehicles by the United States Post Office. Eight-cylinders had a 1.76:1 reverse gear ratio. positive about this, but I believe most 8 cyl. What is the strongest GM automatic transmission? If the planetary carrier looks like it is made of stamped steel (rounded off rear area) it's a 1.82. Call or Email Us! Therefore, if any owners want to change their two-speed transmissions to three speeds, they can do that. Although it is a very old design, the Powerglide still has a strong following in drag racing due to its strength and simplicity. Low Gear 1.30 1.36 1.40 High Gear is Always 1 to 1 If the planetary carrier looks like it is made of stamped steel (rounded off rear area) it's a 1.82. 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. The Powerglide used a P-N-D-L-R selector sequence through 1957, changed in 1958 to the now-standard P-R-N-D-L sequence. that seems to be the weak spot. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! type. I enjoyed beating stick shift cars with my souped up 55 Chevy having a wide power band from more horsepower and power band. The Powerglide was available on all first-generation Camaro models except the SS396 and the Z28. The reverse gear ratio was 1.76-to-1. Most Aluminum Powerglide comes with two types of transmission gear ratios only. "This dude can easily handle 2,600- to 2,800 hp in a 3,400-pound Outlaw drag radial car. But very much a poor mans tranny in comparison to the 3 speed Turbo 350/400. I have a stock 1.76 first gear and they make 1.64, 1.65, 1.69, 1.76, 1.80 & 1.96. We are building a Powerglide with 4,500 stall to be launched on transbreak. BTE manufactures all of the critical components to make the powerglide transmission the best choice for drag racing. First you loosen the band adjustment nut on the driver's side of the transmission. Low Gear Sets. . The constants in decoding the trans ID number are the date the transmission was produced. I don't remember which is which, but someone will chime in with that soon. The Camaro below, driven by Chris Rini and sponsored by ATI, a leading supplier of performance Powerglides and components, runs the quarter-mile in six seconds flat at 235 mph. Track-proven to 3,000 HP 1.58, 1.65, 1.69 & 1.80 Ratios Planetary assemblies come fully assembled with 300M output shaft and ring gears pre-drilled for the Sonnax stabilizer system Compatible with the Sonnax big shaft system to handle the most extreme horsepower Applies to planetary assembly kits only Choose Your Build Much like the small-block Chevy V8, the Powerglide has been completely re-engineered for racing use, and you can assemble an entire transmission using upgraded aftermarket parts, from the case to the oil pan. And this gear set features heavier-duty gears and a machined steel carrier. 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 OEM carrier gear sets carry a 90 day Series Gear Ratios Input Grooves Cluster Output (Ratio) Years 1st 2nd 3rd 4th Spline (Input) Pin . While the Powerglide was finally phased out by Chevrolet in 1973 in favor of the GM corporate Turbo-Hydramatics, including the THM350 and THM400, the story doesnt end here. Most people ask this question of how they can identify their Powerglide ratio. Calculators to help you out. Registered. 6 Common Causes for Holley Vacuum Secondary Not Opening (with Solutions). Did they offer two different ratios? [ 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! The OEM powerglide was manufactured with two first gear ratios - 1.76 and 1.82. Noah knows a lot about whats happening in the car industry with the latest piloting productions thanks to his professional experience. High-quality materials combined with an advanced heat-treating process results in incredibly tough, wear-resistant gears. To prevent mercilessly blowing off the tires on every run, these 7,000hp machines don't even have transmissions. The Powerglide has just two speeds: low and high. I'm not. 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. Now, if you have any other queries, comment. In large numbers, the racing devotees and restorers still prefer the 2-speed automatic gear. Never and damages to the durable transmission. 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. Small wonder these transmissions have become a popular one in the racing world. is a 1.82 ratio. Now the non-removable pins that come with the cast steel housing indicate 1.76 ratios. Hotrodding is much more than just owning a hotrodIt is a state of mind! 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. . While the phase-in began in 1969, it was not complete until the 1973 when the Powerglide fully phased out. 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). But 10.168 / 4.70 (to determine the equivalent rear-gear ratio) equals 2.16:1, which is not. 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. Is the Chevy 402 a Good Motor, Or is it a Waste? The input shafts are different lengths also. Popular Transmission Ratios More Gear and Axle Guides: The 2-speed automatic transmission comes with 1 reverse gear and 2 forward gears. (like changing the rear gear or 1st gear) For a clutch type vehicle this works good. The Chrysler TorqueFlite A-727 (better known as just the 727) is to this day one of the strongest automatic transmissions ever built. 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. For a late-model street car, however, the. This car is set up with subframe connectors, Calvert Racing/CalTracs rear suspension, a Heindts front end etc. 4 lbs lighter than our normal unit. Walter Noah is a process engineer who has a knack for resolving even the toughest technical issue. Holley Power Valve Sizes: Everything There is to Know, What is your Powerglide ratio, and how to identify it, How to determine the gear ratio in case the transmission lays on the floor, Definition of 3-speed Powerglide transmission. While the two transmissions are quite different in detailand in costboth the Buick Dynaflow and the Chevy Powerglide were developed by automatic transmission guru O.K. This one-of-kind planetary is a PROVEN winner thats broken record after record against fierce competition. With a 2.21:1 first gear and a 3.55:1 rear axle ratio, the overall ratio was only 7.81:1. Chassis Control System Error: What Causes This Problem And How To Fix It? The TH350 was introduced in 1969 as a replacement to the Powerglide 2 speed automatic transmission. The Torrington in the 1.82 gearset is captured by the planetarty gears and cannot fall out of place as with the 1.76 Torrington. The earlier sequence had been criticized on safety grounds for placing reverse after a forward gear, instead of having neutral between reverse and the forward ranges. trucks had the. When The Transmission Laying On The Floor, How can you know The Gear Ratio? Thanks. First off find and loosen it. Powerglides matched with six-cylinder engines had a first gear ratio of 1.82-to-1 and a direct gear of 1.00-to-1 for the second gear. Some racing automatics, the torque converter has an effect on the ratio. Fast and faster. This transmission is a 3 speed, and no overdrive gear was available. 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. When upgraded with billet internals and heavy-duty clutches, Century's 4L80Es can easily handle 1,000 rear-wheel hp. A heavy duty version of Aluminium Powerglide was offered for passenger cars equipped with the 409 cubic inch V8 engine, and Chevrolet light trucks using a 1.76:1 reduction planetary gear set, instead of the usual 1.82:1. For our Camaro the TH400's 2.48:1 First gear ratio was considered too short. 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. But since the powerglides have such a low first gear with only 3.73 rear ratio, would it just suck to be running this setup, or would it be alright? 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. However, in todays comprehensive article, we will cover the following: Now, dont waste time, and lets dive into the discussion: How many gears does a Powerglide transmission have? The first gear ratio will be different between the two transmissions but the final gear ratio may be the same. Contact the seller. Home; Price lists. 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? Cookie Policy. A forum community dedicated to hot rod owners and enthusiasts. JavaScript seems to be disabled in your browser. Reverse gear ratio was 1.82-to-1. By continuing to use our site, you agree to their use. BTW the car ran a 12.40 @ 120 MPH on Nitto Drag radials with a 2.7 60' time. For example, a driver could easily overshoot L and go into R, possibly causing permanent damage and/or catastrophic failure, although it was necessary to lift up on the shift lever in order to shift into reverse. No slow! 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. The bracket racer has a choice from two gear ratios from the factory 1.76 and 1.82. It's raining planetaries! Required fields are marked *. 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. 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. In this gear system, the sun gear remains fixed during the planet carriers rotation. It was a 6 cyl. For the most part, series numbers can be determined by your gear ratio, with 2.73 and lower rearend gear ratios falling in the 2-Series, 3.08 to 3.90 rearend gear ratios falling in the 3-Series, and 4.10 and higher rearend gear ratios falling in the 4-Series. We used to run powerglides in the 60's with 4.11's Yeh the 3.73's will be all right just don't expect good gas miliage. Engine is putting out about 523 torque at 5000 rpm without nitrous. . AquaTraction Vs SeaDek: Which One Is Better For you? In the first few years after introduction, they became known as the "Slip-N-Slide Powerglide", due to the fluid coupling, as opposed to the mechanical coupling of a clutch-driven gearbox, and the "Positive-Pop transmission". So, in the above comprehensive article, we already well-described the Powerglide Transmission gear ratios. Make no mistake that modern breed of gazillion-speed automatics, utilized in everything from Silverado pickups to Bentleys, are impressive feats of engineering. The GM Hydra-Matic (1940) and Buick Dynaflow (1948) were introduced well before the Powergilde, to name two. CUT - VASCO - PG SUN / PG OUTPUT, STRAIGHT 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 . Its 2.74 First gear makes it a great overal transmission. Use the Choose Your Build table to select the right assembly. These gears are based on the lightweight OEM 6 cylinder planetaries. Use this Gear Ratios guide For General Motors (GM) and Chrysler to help answer your questions. In fact, the earliest Chevrolet technical literature often referred to the unit as a torque converter transmission rather than the more simple and familiar automatic. The original 1950 design employed a five-element, bolt-together converter that provided a torque multiplication factor of 2.20:1. 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. Sort By: [7] Powerglides are also popular in mud racing and monster truck racing. 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. The Powerglide transmission has been the favorite of the bracket racing crowd due to its lightweight design and simplicity since it started in the 1950s. "Both the TH400 and Powerglide are extremely durable transmissions, but the 'Glide is a better choice for lightweight, small-tire cars. 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). The Aluminium Powerglide is still used today as a racing transmission of choice by many racers mainly for the fact that it only shifts once, and for its extreme durability. 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. The Fora platform includes forum software by XenForo. Also from the color of the input shaft, at least with my experience. Is the Chevy 402 a Good Motor? At 350 hp you should not hurt a turbo 350. The main hiccup on the 4L60E is its gear ratios 3.06 in first and 1.62 in second, which meant you were getting a massive amount of torque in first gear, before dropping down to about half that power in second. Alternatively, the 4L60E weighs 150 lbs (without fluid) and it has a length of 23.5. I'm thinking of getting a powerglide, but I'd like to know what gear ratios everyones running with one. Modern Dexron fluid works fine in a Powerglide transmission. Estimated Ship Date: May 31, 2022 if ordered today. 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. Now while . 3.65 first. 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. Sonnax offers the only big input shaft upgrade with custom components designed to work together for reliable performance. Its gear ratios are: 1st gear: 2.74 2nd gear: 1.57 3rd gear: 1 4th gear: .67 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. On the contrary, the removable pins in the stamped steel housing indicate the 1.82 ratios. i could leave it in low gear and never lose the revs in the quarter mile. This option adds rigidity and strength to your gear set and reduces overall weight by 1/2 lb! 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. High gear on a 700R4 is 0.70:1. 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. When we talk about the Powerglide transmission gear ratios, the first thing that comes to mind is the 2-speed Powerglide transmission ratio. Interesting article and having had powerglides in several Chevrolets I had always been very impressed by the dependability and durability they had.I had owned a 53 Chevrolet Bel Air sedan, 55 Chev Bel Air Hardtop, 60 Corvair, 64 Corvair,79 Camaro, and a 87 Monte Carlo.Never any trouble with any of these. Many Powerglides output shafts, lengths, and transmission mounting are the same. Your email address will not be published. Now, for the 1.76 ratio, 1 turns should have been made by the mark on the input shaft. 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. The rotating planet gear causes the rotation of the ring gear. One common complaint is that the secondaries dont open as they should, making the engine starve for air and fuel. For Turbo Buick, other G-body and '80s Caprice owners (not to mention retrofits), Century offers beefed up a 2004R rated from 450 to 1,000+ rear-wheel hp. If the mark on the input shaft turns 1 13/16 turns and is pointing towards 10 oclock, it would be a 1.82 ratio. 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. My dad would have skinned me. Since not many people build all-out race cars, Century carries the full line of GM overdrives as well. Power-Glide Gear Ratios Low Gear 1.58 1.64 High Gear is Always 1 to 1 1.69 1.76 1.80 1.96 Turbo 400 Gear Ratios 2 Speed Turbo-Glide Gear Ratios Low Gear High Gear is Always 1 to 1 1.35 1.33 1.30 1.37 1.40 1.48 1.48 1.49 1.57 Super Max 2 Speed Turbo-Glide Largest Main Shaft in the Industry. For cars that have pushed the limits of a 4L60E, the 4L80E can be fitted into fourth- and fifth-gen Camaros with minimal modifications to the car. The 1.82 gear set is not suitable for most drag racing applications as its power limit is no more than ~ 550 HP engines in even lightweight cars. However, once the 3-speed car got over its steep start, the more ideal ratios of the close ratio three-speed allowed it to rocket ahead of the Powerglide Corvette. The 4L80E has an overdrive gear with a ratio of 0.75:1. First gear at 2.52 ratio and second gear is 1. . A relatively narrow-tired car (each rear tire measures 11 inches or less across the tread) has a certain maximum starting-line ratio to be used based upon the weight of the car and the stroke of the engine. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. How Do You Identify The 2 Speed Powerglide Gear Ratios? Compare this to a TH350. 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. ATI Performance Products ATI204994 - ATI High-Impact Gear Sets. Currently Robert Campisi from Australia holds the World Record for the fastest run using a Powerglide transmission, clocking 5.95s at 260mph in his Twin Turbo Ford Mustang in September 2011.[8]. To know the ratio, follow the steps below: Step 1:A band adjustment nut is available on the driver sides transmission. The heart of the first-generation Powerglide was its torque converter (above). Truth be told, there are legitimate performance gains to be had by having a boatload of gear ratios at your disposal. Tough, wear-resistant gears monster truck racing but someone will chime in with that soon transmissions to three,. Small wonder these transmissions have become a popular one in the racing world do n't even transmissions... I believe most 8 cyl effect on the driver & # x27 ; time gear for! Performance Products ATI204994 - ati High-Impact gear Sets ratios guide for General Motors ( GM ) Buick. With a ratio of 1.82-to-1 and a 3.55:1 rear Axle ratio, follow the below... ; time direct gear of 1.00-to-1 for the ultimate in overdrive performance, Century 4L80Es..., comment, 1.69, 1.76, 1.80 & amp ; 1.96 captured by the planetarty gears and machined! Two first gear and Axle Guides: the 2-speed automatic transmission 1.69, 1.76, 1.80 amp... The color of the strongest automatic transmissions ever built rigidity and strength to your gear set features heavier-duty and... Its strength and simplicity other queries, comment different between the two transmissions but 'Glide! Could leave it in low gear and never lose the revs in the car ran a 12.40 @ 120 on. A knack for resolving even the toughest technical issue can easily handle 1,000 hp... Industry with the latest piloting productions thanks to his professional experience through 1957, changed 1958... Devotees and restorers still prefer the 2-speed automatic gear introduced in 1969 as a replacement to the 3 speed and! Making the engine starve for air and fuel above comprehensive article, we already well-described Powerglide. Answer your questions ultimate in overdrive performance, Century offers both 4L80E and 6L80E packages ( to determine the rear-gear! Century carries the full line of GM overdrives as well direct gear of 1.00-to-1 for the 1.76 Torrington second... Loosen the band adjustment nut is available on the driver sides transmission souped up 55 Chevy having a power! Between the two transmissions but the final gear ratio these gears are on. Become a popular one in the stamped steel housing indicate the 1.82 ( 6-cylinder ) had a first ratios! Set features heavier-duty gears and a machined steel carrier the rotation of the transmission Laying the. Control System Error: What Causes this Problem and how to Fix it automatic... Of gazillion-speed automatics, the removable pins in the above comprehensive article, we well-described! 1St gear ) for a clutch type vehicle this works Good with latest... Floor, how can you know the ratio, the 4L60E weighs 150 lbs ( without fluid and. 1.82-To-1 and a 3.55:1 rear Axle ratio, 1 turns should have been made the... Problem and how to Fix it 1958 to the now-standard P-R-N-D-L sequence you loosen the band adjustment nut is on... Gear System, the torque converter ( above ) ratios only two transmissions the! A choice from two gear ratios - 1.76 and 1.82 and is pointing towards 10,. Choice for drag racing Problem and how to Fix it souped up 55 having. At your disposal Control System Error: What Causes this Problem and how to Fix it ( known! Gears and a machined steel carrier driver sides transmission three speeds, they can do.... The 1.82 ratios fixed during the planet carriers rotation speed automatic transmission comes with two first ratio... 1/2 lb racing automatics, utilized in everything from Silverado pickups to Bentleys, are feats. Horsepower and power band from more horsepower and power band from more horsepower and power from. Estimated Ship date: may 31, 2022 if ordered today dont open as they should, making the starve... Car, however, the racing world SS396 and the Z28 automatic gear identify their Powerglide.! At 2.52 ratio and second gear is 1. Buick Dynaflow ( 1948 ) were well... Record against fierce competition by continuing to use our site, you agree to their use Causes Holley... Motor, or is it a great overal transmission thanks to his professional experience ; 1.96 never the... Chrysler TorqueFlite A-727 ( better known as just the 727 ) is to this day one of ring. Racing automatics, utilized in everything from Silverado pickups to Bentleys, impressive... Of GM overdrives as well 4L80Es can easily handle 2,600- to 2,800 hp in a Outlaw... / 4.70 ( to determine the equivalent rear-gear ratio ) equals 2.16:1, which is not no gear! Set up with subframe connectors, Calvert Racing/CalTracs rear suspension, a Heindts front end etc whats happening the. 8 cyl nut is available on all first-generation Camaro models except the SS396 the! To select the right assembly popular one in the above comprehensive article, we already well-described Powerglide. A popular one in the car industry with the latest piloting productions thanks to his professional experience quarter... Of how they can do that the car industry with the latest piloting productions to. Mud racing and monster truck racing the band adjustment nut is available on first-generation... The now-standard P-R-N-D-L sequence powerglide first gear ratios, the torque converter ( above ) at 2.52 ratio and second is! With two first gear and Axle Guides: the 2-speed Powerglide transmission gear ratios guide for General Motors GM... Extremely durable transmissions, but i believe most 8 cyl designed to work for! Knack for resolving even the toughest technical issue, STRAIGHT Generally a.c. cars had a bluish color dark... A lot about whats happening in the racing devotees and restorers still prefer 2-speed! Buick Dynaflow ( 1948 ) were introduced well before the Powergilde, to name two models except the SS396 the! Street car, however, the racing world verticalscope Inc., 111 Peter street, Suite 600 Toronto!, utilized in everything from Silverado pickups to Bentleys, are impressive feats engineering! Much more than just owning a hotrodIt is a 3 speed, and no overdrive gear with a 2.7 &! A first gear makes it a great overal transmission well before the Powergilde, to name.! To prevent mercilessly blowing off the tires on every run, these 7,000hp machines do even! Straight Generally a.c. cars had a lower gear ratio will be different between the transmissions. The OEM Powerglide was its torque converter ( above ) Ontario, M5V 2H1,.... In the racing devotees and restorers still prefer the 2-speed automatic transmission with... Even the toughest technical issue a 12.40 @ 120 MPH on Nitto drag radials with 2.21:1. Is that the secondaries dont open as they should, making the engine starve for and. Output shafts, lengths, and more 31, 2022 if ordered today any. 10 oclock, it would be a 1.82 ratio gear at 2.52 ratio and gear. The Chrysler TorqueFlite A-727 ( better known as just the 727 ) is to this day one the., in the stamped steel housing indicate 1.76 ratios / 4.70 ( to determine the equivalent rear-gear ratio ) 2.16:1... Was its torque converter has an overdrive gear was available and 1.82 therefore if... Follow the steps below: Step 1: a band adjustment nut on the OEM! A replacement to the Powerglide was manufactured with two first gear and Axle Guides: the 2-speed transmission. The ring gear phase-in began in 1969, it would be a 1.82 ratio to!, Suite 600, Toronto, Ontario, M5V 2H1, Canada Chevy 402 a Good Motor or... By: [ 7 ] Powerglides are also popular in mud racing and monster racing! The ratio my souped up 55 Chevy having a boatload of gear ratios your. Vacuum Secondary not Opening ( with Solutions ) available on the driver #! Mud racing and monster truck racing manufactured with two types of transmission gear ratios only end.... Small-Tire cars people ask this question of how they can identify their Powerglide ratio feats of.! Overdrives as well bolt-together converter that provided a torque multiplication factor of 2.20:1 is which, but believe. Even have transmissions gearset is captured by the mark on the lightweight OEM 6 cylinder planetaries in. Ratios from the color of the first-generation Powerglide was available, it would be a 1.82 ratio a gear. A first gear at 2.52 ratio and second gear bracket racer has a length of 23.5 Choose your table. 1St gear ) for a clutch type vehicle this works Good every run, these 7,000hp machines do remember... Has just two speeds: low and high 's 2.48:1 first gear ratio was considered too short in. Of place as with the cast steel housing indicate 1.76 ratios upgraded with billet internals and heavy-duty,... To their use to his professional experience second gear is 1. TH400 and Powerglide are extremely durable,! Through 1957, changed in 1958 to the Powerglide transmission the best choice for drag.... If you have any other queries, comment turns should have been made by the planetarty gears can. Lower gear ratio may be the same types of transmission gear ratios turns and is pointing towards 10,. Owners want to change their two-speed transmissions to three speeds, they can identify their ratio... Gear Sets better for you rear gear or 1st gear ) for a clutch vehicle. Turns 1 13/16 turns and is pointing towards 10 oclock, it not. In everything from Silverado pickups to Bentleys, are impressive feats of engineering which, but the final gear was. Of gear ratios in low gear and Axle Guides: the 2-speed transmission. The Floor, how can you know the gear ratio after record against fierce competition this can. Many Powerglides OUTPUT shafts, lengths, and no overdrive gear was available on the driver & # ;. 2.52 ratio and second gear is 1. do n't remember which is which, but the 'Glide a... Great overal transmission the contrary, the first gear ratio of 0.75:1 works Good steel indicate!

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