PY Online Forums - Bringing the Pontiac Hobby Together, Classic TECH- specs, codes, resto issues FORUMS. I just measured my 60' Pontiac and it is the same as my 62' Pontiac. jack39rdstr # 169783 04/02/10 02:03 PM. to change without notice. A: They came in all fullsize Pontiacs and Oldsmobiles from 1957-64. Dec 26, 2008. Hot Rod Blueprints, Drawings and Tech Tips For The Hot Rod Enthusiast!. 0000001291 00000 n The early Nova's 62-67 would be about 2" shorter. While not as strong as a race-dedicated spool, the 31-spline Trophy Track carries a potent arsenal, including six 9310 alloy gears and twin cross-shafts, all of which are dimensionally larger and stronger than anything offered previously. . Quick question, I'm looking at a '50 Pontiac and was wondering if it had a torque-tube or a driveshaft. 5D med-duty 4-pinion. 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 . A: Ford 9-inch is like the small-block Chevy of rearends. 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. '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger 4999 mm / 196.8 in, width: 1854 mm / 73 in, wheelbase: 2746 mm / 108.1 in; reference weights: base curb weight: 1653 kg / 3644 lbs ; . ; Home 2; Home 3; Home / / pontiac rear end width chart. . 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. This number may be on the top, bottom, or either side of the axle shaft. A turbocharger was added to the 301 to give the 1980 Trans Am an injection of performance. 62" 64-77 Chevelle, 73-76 Torino, 89 Trans Am. The following information is provided to help you identify the differential you are working on. 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. 1982-1997. 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. All but a few of the old factory limited-slips had been gathered up and beaten to death. For die-hard purists, it soon became a difficult proposition to build a worthy P/O 9.3-inch as aftermarket support subsided and the supply of virgin factory parts withered. 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. '69 Javelin Six , '70 dodge The Pontiac/Oldsmobile 9.3-inch is your axle. Advance Design Trucks seem to be using 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. This 1955 Chevrolet 3100 Step Side Pickup Truck was built by the Hot Rod Factory, Minnesotas premier hot rod shop and muscle car restoration facility. 2/4-door sedan body type. With its larger bearings, larger gears, and larger axles, the P/O 9.3 would fall somewhere between the Ford 9-inch and the Dana 60 in terms of strength. 66-69 axle does not include 64 65 . '65 Cadillac, '66 Buick Wildcat function SiteStats_3379(){ Look at the RPO codes. With perhaps less than 10 percent of Pontiac and Oldsmobile fullsize cars possessing the Safe-T-Track and Anti-Spin options, prices for unmolested examples remained high. 1990 to 1992: 7.625 inch ring gear, 28 spline axle. 6 lug rear end 12 bolt Coil spring set up Possible gear ratio's 3.70. June 5, 2022 Posted by: Category: Uncategorized You can identify the B-O-P assemblies by the two reverse-scalloped sections of the differential cover located at the 9 and 3 o'clock positions. Yes the axles were special in that I wanted to use a 28 spline center section already had rather than buy a new 3rd member to suit the 31 spline axles that Speedway stocked. 0000007740 00000 n 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 . Accurate Differential Identification is the first and most important step in your differential repair, upgrade or overhaul project. 57" 71-74 V-8 '67 Mustang Six , '68 AMX '71 Comet "+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. For some time, only a small handful of ratios were available in new gears. I cut two axle flanges from a couple of short pieces of wood and then used 3/8 lag bolts to attach them to the longer center portion of the rear axle. Cylinders. They're tough, right? You are using an out of date browser. This information will change as further information and corrections become available. '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger Very hard to find set, being as this is version is not being reproduced. A period gasser can be built by scrounging swap meets, salvage yards, and the Internet for many of the components necessary to complete a genuine example of one of the dominant race cars from the 1950s, '60s and '70s. If it has the original Borg Warner posi then it is stronger than the Chevy 10 bolt. 0000003369 00000 n If you would like to compare the fit with a couple of different widths build your wooden rear end for the narrower width and then add shims to the ends to change the width. And yet, all too often, a beautiful gasser built today is sitting on top of a Ford 9-inch axle. Popular Automatic Transmission Identification Chart; Rear-End Widths of Classic American Cars; Follow Us on Flipboard . ends with widths ranging from 58"- 62". They were robust, drop-out-style third members that offered the strength and serviceability racers required. 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. Roadkill Customs has evolved from local hot rod shop to online how-to magazine for budget-minded do-it-yourself hot rod builders and enthusiasts. 60" 60's GMC and Mercury Capri/Bobcat, Monte Carlo, Regal, etc. 70 2wd 6 lug rear end 12 bolt Possible gear ratio's 3:08, 3:40, 3:73 70-81 4wd 6 lug reared 71- Newer 2wd trucks use a 5 on 5 lug pattern 71-76 Full Size Cars " "" "" ". 0000000911 00000 n Because the Borg-Warner axles were no longer being used for the G92 option, optional axle ratios changed slightly: LB9 305 TPI 5 speed went from 3.45 (1989) to 3.42 (1990) and the B2L 350 TPI went from 3.27 (1989) to 3.23 (1990). GM 7.75" (Australian - Some 3rd Gen Camaro/Firebirds) GM 8.0" - Rear - Late Model Midsize Truck Ring Gear Diameter: 7.75" Ring Gear Diameter: 8.0" Pinion Diameter / Spline: 27 Pinion Diameter / Spline: 1.781" / 27 Ring Gear Bolts: (8) Ring Gear Bolts: (10) 7/16"x20 LH Cover Bolts: 9 Cover Bolts: 10 Carrier Breaks: 2.77 / 3.27 Carrier Breaks: None Q: Why do Pontiac/Olds 9.3 parts cost more than those for a Ford 9-inch? 455 ho only(c-type axle) 12 bolt 1970 3.36 cok col fb 1970 3.55 cow cox fb 1970 3.55 wv xv gto 455 ho only(c-type axle) 12 . 5" for small cars 5" - 6" for intermediate charles coker, 1953 pontiac tech advisor. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. Plywood pieces work well for shims. Prices and availability are subject In the '50s and '60s the search for high-performance parts usually meant a trip to the wrecking yard to rob components, engines, out of big, powerful cars of the dayChryslers, Fords, Cadillacs, Olds, Pontiacs, and W-Chevys were all used. Vehicles with Similar . Jeff Smith: When Chevrolet built the first Camaros in 1967, they were already in production of both 10- and 12-bolt rear-end housings. Outside of flange to outside 54.25" 66 up are wider. (rear-wheel drive), automatic 3-speed gearbox . cars 6" - 8" for large cars, '71 Colt There have been non C-clip rearends found in Chevelle wagons, and some El Caminos through at least 1974. Trans Am. 0000002353 00000 n 57" 71-74 V-8 Mavericks 8", All '75-77 6's & 8's Maverick 5 Lug 8", 49-51 Ford, 57-59 Ford 9", 58" 78-88 Mid sized GM Car, Malibu/Monte Carlo (82 up Metric Studs), 80 Granada & Lincoln Versailles, 67-70 Mustang/Cougar/Fairlane, Regal with 10 bolt axle, S-10 P.U., 65-67 Nova, 60" 55-64 Chevy Car, 67-69 Camaro, 64-67 Chevelle, 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC 6 lug rear end 12 bolt Coil spring set up Possible gear ratio's 3.70. The Trophy Track's strengthened bearing hubs even use larger-than-stock bearings, the same ones found on spools. 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. Year. If you're building a period-correct car, especially a Gasser, they are undoubtedly the perfect rearend for today. Dec 20, 2007. For the do-it-yourselfer, Fabcraft offers a full-color manual with excellent tech info on the differential. Pontiacs had 1.75-inch-wide drums in 1957-58 while Olds used 2-inch from 1959-on, both used 2-inch brakes. It is now late November and I still do not have my axles. stock from flange to flange it is 60 ". This posi has 4 pinion gears, which makes it about 2 times as strong as the Chevy Eaton posi. '73 Ventura, '73 Mustang, '36 Plymouth, '54-56 Ford Pickup 0000008567 00000 n i.e. '71 Comet , '71- 72 Pinto, '39 -48 Chevrolet, '68 GTO endstream endobj 29 0 obj<>stream For a better experience, please enable JavaScript in your browser before proceeding. list of rear ends and their dimensions to help narrow the search for a possible compensate for drums as follows: 4" - The End of an Era. GU5 - 3.23's Optional auto trans gear ratio. $5 Off Your $100 Mobile App Purchase . GM / Chevy - Differential IdentificationShop by your differential. In 1957, the Pontiac and Oldsmobile designs were combined and improved upon, producing a brand new 9.3-inch differential. http://www.jalopyjournal.com/forum/showthread.php?t=128884, http://www.jalopyjournal.com/forum/showthread.php?t=38805, Upstate New York, watching my New Yorker Rust, http://www.jalopyjournal.com/forum/showthread.php?t=128884&page=2, http://www.jalopyjournal.com/forum/showthread.php?p=1450810#post1450810, (You must log in or sign up to reply here. BOP, Pontiac, Each. '69 Javelin Six, '39 -48 Chevrolet 1939 engine numbers run 1915447 through 2697267. In head/2 per cylinder. Actual wheel track could be as much as 6" to 8"depending on drum size: '67 to '70 Mustang/Cougar 6 cyl. Prices and availability are subject This reduced weight and eliminated the stock suspension, producing a spacious engine bay that eagerly accepted the chosen powerplant. So what we are left with is this: A fully capable, period-correct, brute of a differential with complete aftermarket support. The T/A 6.6 was available for most of the model year, but once the supply of stockpiled 400s was exhausted, it signaled the end of the big Pontiac V-8. Copyright 2023 Welcome To Rodplans! '72 Cougar 0000002004 00000 n How to cut your Ford F100 long bed to short bed in a weekend DIY project ~ Two-Part video details cutting frame and bed. '69 Nova Factory Width. You can do this by multiplying by the gear ratio. for highway driving. 0 '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger '69 Oldsmobile 88, '72 Chrysler

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