powerglide first gear ratiospowerglide first gear ratios

The planetary gear assembly is the backbone of the entire system. A turbo 350 is all you need and is lighter than a 400 trans. It keeps the car running pretty much but also tends to fail. 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? 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. 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. These gears are based on the lightweight OEM 6 cylinder planetaries. These gear sets are a BIG step up from standard case-hardened and tempered varieties. 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. First Generation Camaro Info and Tech - 1967-1969. Jon N. ~ The person who doesn't listen to the media is the best informed. 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. . ring gear to the reverse pressure plate is totally Are you looking TCI Auto Gear Ratios? Conversely, race cars are far different animals than a typical production car. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! Modern Dexron fluid works fine in a Powerglide transmission. You can purchase one (p/n CAL) online for $3.00. If you install the Turbo Hydro trans, you could easilly switch to a 3.08 rear end (or even numericly lower) for a lower cruising speed. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. Powerglides were used extensively on Pontiacs produced for the Canadian market with Chevrolet powertrains. Gear Ratio Calculator. 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. . I have a stock 1.76 first gear and they make 1.64, 1.65, 1.69, 1.76, 1.80 & 1.96. To see what it takes to build a nearly indestructible 'Glide, we paid a visit to Century Transmission in Richmond, Texas as they put The Purp's trans together. Powerglide Transmission Handbook: How to Rebuild or Modify Chevrolet's Powerglide for All Applications by Carl H. Munroe. Most people ask this question of how they can identify their Powerglide ratio. They were also used in the DJ-5 'Dispatcher' Jeeps sold for light commercial use, and best known for their service with the US Postal Service. Sort By: Engine is putting out about 523 torque at 5000 rpm without nitrous. I couldn't tell any difference in the engine rpm's. A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. First off find and loosen it. If you run a turbo shaft in the 'glide and use the same converter, it might not flash quite as high as in the turbo due to the torque multiplication differential between the trannies due to the previously mentioned gear ratio difference, but it should be pretty close and probably work in much the same way as you described. 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. With a higher stall converter, the ratio can be smaller, making a rear gear able to be a higher gear for more top end. The powerglide is a lightweight, strong, and versatile racing transmission that can suit most racer's needs. Calculators to help you out. The store will not work correctly in the case when cookies are disabled. Cookie Policy. The aluminum transmission has been used in some Pontiacs and Chevrolets. It is also possible to purchase all the parts needed to build an Aluminium Powerglide from scratch from most racing parts vendors. I think you are probably looking in the 3.08 (non-a.c.) to 3.36 (a.c.) range. All rights reserved. For pure race applications such as The Purp, it's tough to beat the Powerglide. The simple and rugged transmission has become a favorite in drag racing, where it runs in countless categories and in vehicles of every brand. Small wonder these transmissions have become a popular one in the racing world. JavaScript seems to be disabled in your browser. 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. We offer a variety of gear ratios, input shafts, clutch drums, roller components, and other items to custom fit almost any high performance vehicle. For the 1968 model year, Chevrolet introduced a semi-automatic version of Powerglide marketed under the name Torque-Drive. 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. Casting numbers on the case and extension housing. Required fields are marked *. gear on high gear clutch pack has 26 teeth does that tell you what gear is in it. Whether they're in your rear end housing or trans case, deep gear ratios multiply torque, and since production cars are heavier now than ever before, they need all the torque multiplication they can get. Although it is a very old design, the Powerglide still has a strong following in drag racing due to its strength and simplicity. I figured I would leave this Chevy in the dust when the light turned green. Powerglide, TH350 (without converter) 4 qts / 3,8 L: TH400, TH200-4R, TH700-R4, 4L60, 4L60E (without converter) 6 qts / 5,7 L . Just a note, there are two types of Glides, those with 1.82's first gear ratio and those with 1.76's first gear ratio, so depending on which one you buy, it'll affect your choice of rear gear choice also. JavaScript is disabled. around 850ish hp, but will be higher in the future. Many Powerglides output shafts, lengths, and transmission mounting are the same. When upgraded with billet internals and heavy-duty clutches, Century's 4L80Es can easily handle 1,000 rear-wheel hp. The input shafts are different lengths also. Gear Sets - 9310, 3-Speed There were only two gear ratios used in the aluminum Powerglides; six-cylinder engines had a 1.82:1 first gear ratio, with a 1.00:1 second gear ratio. Car made peak torque of 474 FtLbs here. One notable exception was the export version of the transmission, which offered only the 1.82 ratio and was used by Holden in Australia behind their Australian built 6-cylinder and V8 engines. Save yourself the headache and let us figure out your ring-and-pinion gear ratio! For a better experience, please enable JavaScript in your browser before proceeding. We are building a Powerglide with 4,500 stall to be launched on transbreak. Home; Price lists. 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). Holden vehicles fitted with Chevrolet V8 engines used the 1.76 ratio gear-set. For today's heavy cars, the 4L60E's 3.06:1 First gear ratio makes it a very popular choice. I will up grade to after market set just not sure what ratio? This transmission is a 3 speed, and no overdrive gear was available. 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. Why? Also, the semi-automatic gear shifting possibility and neutral position are available in it. 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. Question: Will engine flush improve oil pressure. Access Drag Performance Calculator. Duck for cover! Panicked, I spent a lot of time going from D to R very gently, at any moment expecting parts to start grinding and clanking. eliminated. 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 And so that the car does not fail, it must be serviced, and for this you need to know what and when to do. Powerglide Planetary Gear Sets and Parts. . 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. Build with a torque converter lock, a 27-spline input/output shaft, 11-quart fuel capacity, a case length of about 27" and a width of about 19", and an aluminum outer casing, its torque capacity outdoes even the reliable 700R4 of the time. They were introduced in Buicks and Cadillacs the previous year. came with a .373 gear ratio regardless of trans. This compares to the Powerglide Corvette's 13.56:1 overall launch ratio. I don't remember which is which, but someone will chime in with that soon. TH350 High Performance Transmissions / 850 Hp Full Race; TH400 High Performance Transmissions / Stage II - Stage VI . 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. Now while . 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. This car has a 355 in it. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Disclaimer: Remember to always consult with an expert first before trying anything at home. Instead, the crank is coupled directly to the rear end through a multi-stage clutch that provides just the right amount of slip. From the factory, a Powerglide transmission has either a 1.76:1 or 1.82:1 first gear. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. A forum community dedicated to hot rod owners and enthusiasts. Watch the video to learn how easy it is to level up an existing planetary assembly or build from scratch in the gear ratio of your choice. JavaScript is disabled. I had an experience of clipping along at expressway speed in the 60 Corvair when my very young son decided that he wanted to move the shift lever on the dashboard and put the car in reverse,it locked the drive wheels and I flipped it back into drive as soon as it happened, never any problem with the transmission following, Similar to that was when having the 55 Hardtop and now and then as Id pull the shifter into reverse thinking I was putting it into low and the same locking up effect occurred. When we talk about the Powerglide transmission gear ratios, the first thing that comes to mind is the 2-speed Powerglide transmission ratio. Now, for the 1.76 ratio, 1 turns should have been made by the mark on the input shaft. 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. 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) . Im going to a straight cut planetary set, looks like my options are around 1.80 or 1.69 1st gear ratios. Is There a Sequence? Axle Ratio = (RPM X Tire Size)/ (Speed (MPH) X 336) Example 4.88 = (2881 X 37)/ (65 X 336) I could scarcely believe that transmission still worked at all, let alone that there was no damage. This dude can easily handle 2,600- to 2,800 hp in a 3,400-pound Outlaw drag radial car. Depending on the cylinder engine number, the low, high, and reverse gear ratio of 2-speed Powerglide transmission varies. Granted that The Purp is no Funny Car, but the same concept applies. Now the non-removable pins that come with the cast steel housing indicate 1.76 ratios. The Powerglide has just two speeds: low and high. This phenomenal level of durability will set you back about $3,800. We use cookies to provide you with the best possible user experience. Using the shifter, the rider chooses the speed in 3 gear transmission. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more! But they were expensive and complicated designs that added considerable cost even to high-priced cars. This is what we will try to figure out. Estimated Ship Date: May 31, 2022 if ordered today. The big difference is the first-gear ratio. Eight-cylinder engines used a 1.76:1 first gear ratio with a 1.00:1 second. Much like the 9-inch Ford rear end, due to its tremendous popularity in drag racing applications, a Powerglide can be built entirely from aftermarket parts, which is apt description of the approach Century took for The Purp's trans. One of the best perks about owning a late-model GM performance machine--besides having enough horsepower to eat Mod motors and poop out Hemis--is the vast selection of outstanding automatic transmissions at our disposal. 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. Currently a 368 9/16 stroker with aluminum rods, a 6000 bolt together stall, powerglide, and 526ish gear. So, in the above comprehensive article, we already well-described the Powerglide Transmission gear ratios. Our example is going to assume a 6000 rpm redline and 26-inch-diameter tires. Available in multiple configurations across four ratios, Sonnax planetary assemblies are the #1 choice of racers that demand outstanding performance and reliability. ATI Performance Products ATI204994 - ATI High-Impact Gear Sets. The heart of the first-generation Powerglide was its torque converter (above). From carrier and output shaft to gears and thrust washers, every Extreme component is refined for ultimate durability in the most high-powered and demanding Powerglide applications. CUT - VASCO - SG4 SUN, T400 OUTPUT - LIGHT, 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. 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. The aluminum Powerglide started in the early 1960s. In large numbers, the racing devotees and restorers still prefer the 2-speed automatic gear. BTE manufactures all of the critical components to make the powerglide transmission the best choice for drag racing. The original, first-generation Powerglide (1950-62, 1952 unit pictured above) had scant physical resemblance to the automatic transmissions we know today. 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? 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. The 1.82 gear ratio or gear set's power limit is up to 550 HP engines. Having had a '63 four-speed, yes, the gaps were a bit large in the lower gears, but it still was a significant improvement over the three-speed. Its gear ratios are: 1st gear: 2.74 2nd gear: 1.57 3rd gear: 1 4th gear: .67 In normal driving, the transmission remained in top gear, with all the mechanical advantage supplied by the torque converterthere was no detectable upshift. type. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! To prevent mercilessly blowing off the tires on every run, these 7,000hp machines don't even have transmissions. Check if this part fits your vehicle. 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. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. Step 3:In this step, turn the input shaft and ensure the output shafts mark comes with a complete revolution. The gear ratios used for this transmission were 2.52 for 1st gear . 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? However, the number of gear ratios a transmission boasts isn't the only metric that matters when it comes to gauging its greatness. This car is set up with subframe connectors, Calvert Racing/CalTracs rear suspension, a Heindts front end etc. Now, don't get me wrong. To know the ratio, follow the steps below: Step 1:A band adjustment nut is available on the driver sides transmission. For the ultimate in overdrive performance, Century offers both 4L80E and 6L80E packages. (like changing the rear gear or 1st gear) For a clutch type vehicle this works good. The starting-line ratio is a combination of the first-gear transmission ratio multiplied by the rear-end gear ratio. The input shafts are different lengths also. By continuing to use our site, you agree to their use. 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. 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 . How Do You Identify The 2 Speed Powerglide Gear Ratios? 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. my car is 2450# with a sbc 434, powerglide, 5000 stall, rear is 4.56 tires are 32.5, runs 9.30's @ 145. 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). Robs power and burns up fuel. Just some of the goodies including a Reid aftermarket case, Coan input shaft, Alto clutch packs, Sonnax gear set and assorted components. After seeing this 'Glide's guts up close, we'd have to agree. I also am not sure if the 350 was available in a chevelle in 1967. No doubt you are familiar with Century's 4L60E and 700R4. Someone feel free to jump in here if I am off base. The eight-cylinder engines used a 1.76:1 low gear and 1.00:1 high. Apr 4, 2004. The Aluminium Powerglide, and Tempestorque was used from 1962 until it was replaced with the Turbo-Hydramatic series of transmission in 1973. Also from the color of the input shaft, at least with my experience. . 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. More automatic transmissions like 5, 6 or even 7 will come soon. 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. [5] Other Powerglides came with an incompatible 16 spline output shaft.[6]. 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. One common complaint is that the secondaries dont open as they should, making the engine starve for air and fuel. The 1953 and later units when in "Drive" started in low and automatically up shifted to high at a speed determined by the throttle opening. Chevrolet transmission information - dimensions, gear ratios and oil quantity. Holden vehicles fitted with Chevrolet V8 engines used the 1.76 ratio gear-set. And I have no clue what torque converter to use, can anyone help? 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. 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. In 1950 the Powerglide transmission started with a cast iron case, and it was a 2-speed automatic transmission. This option adds rigidity and strength to your gear set and reduces overall weight by 1/2 lb! The 1.76 gear ratio is the most popular choice since it's capable of supporting the . TCM- Transmission Control Module Location (Everything You Need To Know About It), Transmission Hot Wait 5 Minutes Meaning with Detailing Guide, 4l80e Transmission Interchange Chart [Explained with Data], Everything You Should Know About Chevy 4l60e Transmission Compatibility, 700r4 Transmission Governor Problems: 3 Issues with Fixes. The driver would start the car in "1st," then move the lever to "Hi" when desired. A chrome badge on the deck lid proudly proclaimed POWER GLIDE, and to compensate for the lack of torque multiplication, Powerglide cars got a slightly larger six-cylinder engine (235 vs. 216.5 cubic inches) with hydraulic valve lifters and 105 hp rather than the standard 90 hp. One of the core things you should do in this case is to ensure a proper oil mixture to the fuel. For a better experience, please enable JavaScript in your browser before proceeding. Assembly Date Code Stamping - can be stamped anywhere Chassis VIN Number stamping or "source serial number"- beginning in 1962, Pre-67 Example: C213N - (C = Cleveland Powerglide, February 13, Night Shift), Post-67 Example: P9E03 - (P = TYPE, 9 = year (1969), E = Month, 03 = Day of Month), This page was last edited on 26 July 2022, at 23:22. In 1962, GM started building Air Cooled Powerglides in aluminium, primarily for use in the new model Chevy II, which required a lightweight transmission for its compact body, and discontinued the cast iron Powerglides in 1963. Weve Answered Perfectly!Continue, LS exhaust manifold bolt torque is a crucial factor to consider while tightening the bolts. 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. Cars, like everything else, tend to break down. Actually, no Powerglide was available in 3-speed. Select the value you want to solve for. It's pretty much the baddest of the bad," says Mike. Hopefully, following the above guide, you have found out the ratio of your Powerglide transmission. "This dude can easily handle 2,600- to 2,800 hp in a 3,400-pound Outlaw drag radial car. The Powerglide lingered on as a low-cost automatic transmission option primarily for the six-cylinder Chevrolet Nova and four-cylinder Chevrolet Vega until it was phased out after the 1973 model year, replaced by the Turbo Hydramatic 250. Whether your Powerglide transmission ratio is 1.76 or 1.82, its crucial to know. 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. Early models were air cooled, and later 60's versions used a fluid cooler in the radiator. 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. .307 ratio. 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. A 3.36 rear axle gear ratio would be more livable [3.36 x 2.87 = 9.64]. [ (Axle Ratio x Vehicle Speed x Transmission Ratio x 336.13) / Tire Diameter ] = [ (3.73 x 65 x 1.00 x 336.13) / 31 ] = [ 2628 ] Note: 336.13 is used to convert the result to RPM = [63360 inches per mile / (60 minutes per hour x Pi.)] . Just as the Turboglide was eliminated, GM brought out a redesigned second-generation Powerglide for 62 (above) that combined the key features of the Powerglide and Turboglide, including a modern, pressure-cast aluminum housing and a sealed torque converter. For V-8 models, the automatic had a 1.76-to-1 first gear and 1.00-to-1 second gear ratio. 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. The eight-cylinder engines used a 1.76:1 low gear and 1.00:1 high. AquaTraction Vs SeaDek: Which One Is Better For you? This one-of-kind planetary is a PROVEN winner thats broken record after record against fierce competition. Torque-Drive was only offered on low-horsepower engines for Camaro and Nova. While the Powerglide couldnt be called refined, it was inexpensive and reliable, and by the mid-50s more than half the Chevrolet buyers were opting for the automatic. Are Ignition Coils Universal? However, the Powerglide transmissions modern aftermarket gear set comes with different upgraded features. 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 (!) . Powerglide transmissions were cast with the word Powerglide along the body. If you need any help with going through it, just email me. 8.67 @ 156 mph and 5.55 1/8th. High gear on a 700R4 is 0.70:1. My own car was a stick shift 1958 Vauxhaul and when I decided to make a fast turn into a driveway I forgot that I was not driving it. The Powerglide has also been described as a poor mans Dynaflow, and theres more truth to that throwaway line than there might seem. Can't Find what you're looking for. TSI has pioneered much of the technology that is now commonplace in the transmission marketplace. Moreover, the HP engine power for the 1.76 gear set is 800 HP. OEM carrier gear sets carry a 90 day 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). VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. 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. 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. Is the Chevy 402 a Good Motor? For the best experience on our site, be sure to turn on Javascript in your browser. Never and damages to the durable transmission. For the best experience on our site, be sure to turn on Javascript in your browser. What Is the SBC Header Bolt Torque? Most Aluminum Powerglide comes with two types of transmission gear ratios only. That is another article in itself. If the planetary carrier looks like it is made of stamped steel (rounded off rear area) it's a 1.82.

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