* Pinion #s GM 40 13 == 67 K D. jack39rdstr # 169783 04/02/10 02:03 PM. The S10 10bolt 7.5/7.625" rear end is a good choice for the light low to medium horsepower small block cars. The 1' wider that was stated in paul/chuck 's book may have been miss spoke. I have a source for the axleshafts and the difference in the shafts shows this to be true, BUT doesn't show the diff center . 1956 and back have 10-spline axles. Building a gasser is a satisfying way to blast down the track, turn some heads, and salute the good old days of racing. 4.24 out of 5 stars. '67 to '70 Mustang/Cougar 8 cyl. The P/O rearend and parts were getting harder to find and there were more Ford 9-inchers being made every day. '64 1/2-'65 Mustang Shop Full Width; Shop With Sidebar; . Engine Numbers. '71 Comet for highway driving. 0000002004 00000 n %PDF-1.4 % Fabcraft can also supply an excellent manual that tells you everything you need to know about these rearends, along with instructions on overhauling them, or they'll refurbish a rearend for you. '65 Cadillac, '66 Buick Wildcat 1957-58 are 29-spline and 1959-1964 are 31 spline. 18 21 Willwood Engineering. of torque to the pinion gear and the gear ratio of the ring-and-pinion is say 4.12:1, the output torque is 412 ft./lbs. } Ford. The actual width that I made out of wood was based on both the measurements I had taken with the loose wheels and my research to determine what widths were available for purchase. Several features are common to most gassers. Quality and service was excellent. Forbes and various locations throughout the Web and Automotive Magazines. In their day Pontiac and Olds rearends had a well-deserved reputation for toughness and reliability, that's why they were found under so many hot rods on the dragstrip and the street. 5D med-duty 4-pinion. Several years later, the popularity of this almost deceased differential was rapidly swelling. For a variety of reasons, not the least of which is the current Gasser craze, Pontiac and Olds rearends are enjoying renewed popularity. These rearends were the Hotchkiss style, which means the ring-and-pinion gears, along with the differential components, are housed in a removable carrier, making gear changes and axle replacement quick and easy. Plywood pieces work well for shims. We provide how-to and technical articles, vehicle and build features and examples, plus calculators and lookups that will help you get your ride from dream to driver. ZE reg-duty / 4E med-duty 4-pinion. I would like most people place the wheels and tires under the car and use a tape measure to determine the distance from wheel flange to wheel flange. June 5, 2022 Posted by: Category: Uncategorized I'm running the wider blazer rear end . Wheel- Size.com The world's largest wheel fitment database. With a maximum top speed of 112 mph (180 km/h), a curb weight of 2672 lbs (1212 kgs), the Fiero GT has a naturally-aspirated V 6 cylinder engine, Petrol motor. Contributing information were Bob Welch, J Forbes and various locations throughout the Web and Automotive Magazines. The following list wagon pontiac plant 1975 2.73 ua va b sedan 1975 2.73 ya za b wagon 1975 2.73 pa pu f 1975 2.73 wl xl g . 62" 64-77 Chevelle, 73-76 Torino, 89 Look at the RPO codes. Approximate rear end widths measured from backing The 10-bolt was used in all the low performance applications. Copyright 2023 Welcome To Rodplans! Someone may correct me, but as I recall 1959 was the first year for the "Wide Track" Pontiac. Because OE components were still widely used in racing circles, the 9-inch gained traction as a viable alternative, superior to the newer, cheapened, integral-style axles using C-clips and flimsy internals. I've heard 'prolly torque-tube' from most that I've asked My friend's stock '41 Pontiac is open drive, so I would imagine that the '50 is as well. 1967 Pontiac GTO - Wheel & Tire Sizes, PCD, Offset and Rims specs | Wheel-Size.com. may be different than pictured. I'm not sure of the Task Force width ranges at this time. Floor jack permits you to raise and lower wheels to check for clearance. RWD (rear-wheel drive), automatic 4-speed gearbox. Stop listening to your street rodder buddy and back away from the 9-inch. According to an old article, Inside '64 -- '72 A-Bodies, (Car Craft Magazine), 1967 was a transition year in that A-body cars might have a 1964-66 style rear end, a 1968-72 rear end (which is wider, and commonly available), or a "hybrid" rear end, which will have the 60.5-inch width, but with the early spring mounting pad and trailing arm . The 1967 Firebird has the particularity to have a rear axle held by arms while in 1968 rear axle was hold only by the blades/spring of suspensions. The 55-57 Chevy car rear-end is almost a bolt in, the perches need to be relocated to the top of the housing though. pontiac rear end width chart. Last Update: Feb. 24, 2023, 5:12 a.m. '67 Mustang Six , '68 AMX As the popularity of the Ford 9-inch increased the P/O 9.3 began to fade from the scene. Is a pontiac center section as olds rear ends of that era? 71- Newer 2wd trucks use a 5 on 5 lug pattern The 8.75 (8 3/4) rear end LOADS FROM THE FRONT and IS THE ONLY REAR END THAT DOESN'T HAVE A REAR COVER. 100 x 4.12. %twE_( H@v7H f)p* 0KO|O n>+ May 7, 2009. . 0 This ratio is 3.08, perfect for cruisin. "" "" ". All Pontiac Firebird 2nd-gen. Trans Am Coupe versions offered for the year 1977 with complete specs, performance and technical data in the catalogue of cars . B-O-P axles also have identifying grooves traveling along each side of . Add Width to Length, GM 8.2 in. '69 Dodge Van, '71 Torino So why did the Ford 9-inch become the premier differential of modern day hot rodding? Real World Hagerty Collector Car Insurance Claim Experience, How To Be Prepared For A Dyno Session And Not Waste Your Money, Holey Goat Father/Son Texas Road Trip 5 Days, and 2000+ Miles, Are You Killing The Hot Rod Community? My 69 gto convert., purchased within the last year has a painful 2.56 rear gear. All Rights Reserved. A: They came in all fullsize Pontiacs and Oldsmobiles from 1957-64. A: Starting in 1937 Pontiac and Oldsmobile rearend designs slowly began to converge, to the point that in 1957 all major components were virtually interchangeable, with the exception of some brake components, suspension attachments, and axle housing/axle widths. Popular Automatic Transmission Identification Chart; Rear-End Widths of Classic American Cars; Follow Us on Flipboard . Mopar Rear Axle. plate to backing plate. xref You're building a gasser. In this 489 case it is 3:91 gears and a 1 7/8 pinion. S10. 60" 60's GMC and some Chevy's Dana 44 or Dana 60 with leaf springs 6 lug, Gear ratio's 3.21 to 3.92. For many years prior, Olds and Pontiac differentials had been a dominant rear axle in drag racing and other motorsports. '68 AMX Real World Hagerty Collector Car Insurance Claim Experience, How To Be Prepared For A Dyno Session And Not Waste Your Money, Holey Goat Father/Son Texas Road Trip 5 Days, and 2000+ Miles, Are You Killing The Hot Rod Community? A little history: In 1957, three important axles were introduced: Ford's 9-inch, Chrysler's 8.75-inch, and GM's 9.3-inch Hotchkiss-style axle for Pontiac and Oldsmobile. For a better experience, please enable JavaScript in your browser before proceeding. 1990 to 1992: 7.625 inch ring gear, 28 spline axle. I just measured my 60' Pontiac and it is the same as my 62' Pontiac. Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale. Once I had determined the desired width with the loose wheels and tape measure I constructed a wood rear end out of a 2x4. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. This method will work but the wheels are always trying to roll away and tip over making it very hard to check for clearance and be sure that your measurements are correct . i've seen that link about a hundred times now and it's kind of funny how the 73-77 GM A-body is not included. Brand new gears in ratios from 3.42 through 5.38 could be purchased and mounted on a new forged-steel spool with 31- or 35-spline axles. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. Maverick 5 Lug 8", 49-51 Ford, 57-59 Ford 9", 58" 78-88 Mid Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. [ July 26, 2022 ] Reversing Gears ~ Rescuing One's Own Derelict 1967 Pontiac GTO Builds and Examples [ July 24, 2022 ] . The following information is provided to help you identify the differential you are working on. Identified by casting number & number of cover bolts. "+j)(4 T "Hd&6F T:R%xA+R>6^yyp0}Zc9^):(cdf_rKr2zB,ywV}w0*lkxwM y icR,2*G{>K\"|>XWAIRYQ_dKx}wt}_=/3=)>fQaa-# C+|prj~%ox$LpKaGPG&T`o. Chrome 10 Bolt Rear End Cover Fits Chevy Pontiac Oldsmobile10 Bolt Differential Its role in drag racing was limited to primarily Stock, Super Stock, and Factory Experimental Fords. Detroit gear & axle : AB : 3.36 : No : Powerglide : Detroit gear & axle : AC : 4.11 : No : 3 speed, O.D . the wider housing is not 1" closer to 3/4 . (rear-wheel drive), automatic 3-speed gearbox . 0000004229 00000 n The renewed interest in the P/O 9.3-inch generated high demand for any limited-slip units that were left. Compared side-by-side with the Chrysler, it boasted stronger gears and larger bearings. Numerous e-mails and phone calls, stories of lost and found axles finally resulted in an e-mail from Speedway motors November 22nd apologizing for not handling this order in a timely manner and that a refund would be sent today. Plywood pieces work well for shims. Calculating the torque multiplication that your axle gears provide is quite easy. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. In 1958 a good thing got better when limited-slip differentials were offered. '74 Valiant, '57 Ford The 1965 Pontiac Tempest LeMans measures 74.40 inches in width, The 1965 Pontiac Tempest LeMans measures 206.20 inches in length, and has a wheelbase of 115.00 inches. I have in the past struggled to measure the car for the correct rear end width to get the wheels and tires to fit correctly for both appearance and to avoid contact with the fenders, frame and suspension. GU5 - 3.23's Optional auto trans gear ratio. Will only work with bolt in style axles. Fits 41-52 Olds, 50-55 Pontiac : 1310 to 1330: MORE INFO: 3.219 x 1.062: Outside Snap Rings: Converts To: 3.625 x 1.062: Outside Snap Rings : Rear End Widths - - Back - - Home > Specs > Rear End Widths : Representative for comparison purposes only. (Dart/Duster) with V8&3/4 axle, Table taken from "How to Build Many aftermarket options exist with all of the appropriate mount points. We'll work to keep you motivated and informed and with industry news, product information and reviews, event coverage, and well-curated articles and stories intended to inspire and educate. Picture is from parts book. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. There's absolutely no excuse to use the wrong differential in your gasser. On early street rods it wasn't unusual for the rear of the car to be jacked up so wider than stock tires could protrude several inches past the fenders, but then styles changed and the need for a narrower rearend that was reasonably strong led many hot rodders to the '57 Ford 9-inch, particularly those under wagons and Rancheros as they were the narrowest. Buick and Pontiac 10-bolt rear ends used flange-retained axles instead of the C-clip retained axles like those on Chevrolet rears. 0000001644 00000 n The GM 8.2" axle is available in two configurations: The standard GM 8.2" version features an 8.2" diameter ring gear with 28 spline axle shafts that are held in place using c-clips. Pontiac/Olds 9.3 parts are manufactured in the United States and are made in smaller custom production runs using high-quality alloys and the best materials available. It is a little better than the Camaro 8.2 10 bolt. Your Nova should be the same as 67-69. Ford Mustang Complete 9" Rear End Packages, GM G-body 78-87 Complete 9" Rear End Package, GM Chevy S10 82-04 Complete 9" Rear End Package, GM Tri 5 55-57 Chevy Complete 9" Rear End Package, GM X-Body Nova Complete Rear End Packages, Axle Bearings, Retainer Plates, & Wheel Studs, Bearings, Differential Parts, Seals, & Hardware, Master Cylinders, Caliper Kits, and Parts. Part Number: YGA-21289. Wilwood Engineering designs and manufactures high-performance disc brake systems. A Chevy 1/2 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear axle. How To Box-In a Differential / Solid Axle Rear-End Housing; . 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC I am using a 62' Olds rear in my 61' Bel Air and it is 1" wider that the stock Bel Air rear. I used 5" long lag bolts to hold the end pieces of wood on which permitted me to add up to 1.5" of shims to each end. In 1957, the Pontiac and Oldsmobile designs were combined and improved upon, producing a brand new 9.3-inch differential. Another factor that made these rearends popular was the wide selection of factory gear ratios available, 2.56:1 through 4.30:1 while even lower drag racing cogs were available from aftermarket suppliers. Please select a rear end that matches your vehicle below.General Motors has a wide range of front and rear ends! 0000007740 00000 n I have heard that a 1st gen Pontiac Firebird rear is wider, but I am not sure by how much. may be different than pictured. '69 Cougar, '71 -73 Nova It'll help you sniff out the right parts and will walk you through building the differential for your gasser project. Grand Prix. But it's been so long I can't be certain. For 1966-1970 Plymouth and Dodge B-bodies there were three basic rear end assemblies that were available: the 8, the 8, and the 9 Dana 60. . to change without notice. Thanks to the efforts of the Fabcraft Metalworks crew all the parts necessary to rebuild one are available along with a selection of improved components and special tools to make working on them easier.
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