For a better experience, please enable JavaScript in your browser before proceeding. Very hard to find set, being as this is version is not being reproduced. The 8.2" BOP (Buick, Oldsmobile, Pontiac) model is slightly different in that it uses pressed on axle bearings and instead of c-clips . with 10 bolt axle. Originally posted by SUNNYD @Mar 22 2007, 10:23 PM~7534589. Information provided by:Joe GarciaThe Resto Rod Shop. It has the 4.75" bolt pattern, and ratios are usually 3.55-3.73, but sometimes you'll find a 3.36. 0000001644 00000 n Rusty but Rare 1976 Chevy K10 Sport Truck Revival! '70 Duster Wheel Stud *. Your Nova should be the same as 67-69. The housing came in a couple of weeks but without the axles. The 1967 GTO came in 3 speed Automatic and a 4 Speed manual. Check here to see if your engine is correct for your year truck. Many aftermarket options exist with all of the appropriate mount points. Model. Dec 20, 2007. pontiac rear end width chart. Demand exceeded supply, so after several years of planning, designing, and prototyping, Fabcraft Metalworks teamed up with a major U.S. manufacturer to produce a brand new, extreme-duty limited-slip differential for the 9.3-inch called the Trophy Track. 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. Below matches. No one is making new 31-spline side gears at this time, which is not good. Displays PONTIAC bolt patterns, wheel sizes and dimensions by model or view all matching vehicles that will swap or interchange with PONTIAC wheels. Rear axle widths. Buick/Olds/Pontiac axles are typically retained with bearings. However, the 9.3-inch differential was saved from obsolescence by a Texas-based company called Fabcraft Metalworks and its owner, Brad Duerst. Housings with leaf springs were used under Pontiac and Olds in 1957 and Olds only in 1958-60; Pontiacs had coil springs in 1958-60 and from 1961-64 both had coils. Beginning with a new line of U.S.-made gearsets in desirable ratios, Fabcraft rekindled the flickering flame of the 9.3-inch. of extensive information was contributed by R. Welch: Original Vehicles 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. 0000007740 00000 n The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. xref jack39rdstr # 169783 04/02/10 02:03 PM. The Dana rear end is a bolt in swap for the both the 8 3/8 and the 9 1/4, all rear ends can be had with the same size u joint yokes, vans are good place to. Find your GMC/Chevy vehicle in the chart below and click on the illustration for a larger view. Rear Wheel: Production Years for Series : 1964 - 1967 : Price : $2,437-$3,095: Weight : 3015 lbs | 1367.581 kg: Performance. Newest [ January 23, 2023 ] Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory Roadkill Powersports $5 Off Your $100 Mobile App Purchase . These smaller volumes and domestic content result in slightly higher prices. It has been my experience that the 66 up axle is longer. The correct width for 59' & 60' is 63-1/4" I believe. 70-81 4wd 6 lug reared @`AWG^8J>4j|^Vk@oXq7@@/9ep The dana pinion stands forward about 2" more than the 9 1/4, the driveshaft will need to be shortened accordingly. %%EOF 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. Terms 1969. I've read enough times that '64/'65 are 54.25" and '66's are an inch wider that I believe it. The following information is provided to help you identify the differential you are working on. Some of the most frequently asked questions regarding the Pontiac/Oldsmobile 9.3-inch rearend: A: Fabcraft Metalworks provides virtually every component for the Pontiac/Oldsmobile 9.3-inch rearend. You bring the gumption. Copyright 2023 Welcome To Rodplans! Posts: 8. xb```"~> !%1#XY} P A1@G7L/^nkX,i{j^vL@l ` n 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. Mercury Capri/Bobcat, Monte Carlo, Regal, etc. Prices and availability are subject The high-volume production runs of Ford-9 inch components allow them to be relatively inexpensive. The simple cure when using wide tires with a stock-width rearend was to radius the fenders and let the tires hang out in the breeze. A: Extremely strong! 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. //-->. But the components should at least be grounded in the era. 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. var t=new Date(); Actual wheel track could be as much as 6" to 8"depending on drum size: '67 to '70 Mustang/Cougar 6 cyl. The total width of the Chevy II rear end is 58 inches and the total width of a '67 to '69 Camaro rear end is 60 inches. Registered: 16 years ago. All Rights Reserved. manufactured by Pontiac in United States. '67 Mustang Six , '68 AMX Compared to the Ford, the P/O parts were more expensive. 0 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. There is no point in mocking up the wheels to a width that in not commercially available or one that was never provided by the OEMs unless you are planning on spending a lot more money on a custom width housing and axles. Casting # Year: Body: Size: Notes: 2070051: 1960 - 71: A . Engine Numbers. . All housings have strong, tapered axle tubes, come in numerous widths, and sport a variety of suspension brackets. GMC V-6 0000009416 00000 n The 78-88 mid size GM cars use a 7.5" 10 bolt, which is about 58/5" wide. Check our the Chevy rear end gear ratio chart above to help you identify the correct gear to use. Pontiac labeled theirs Safe-T-Trac while Oldsmobile called it Anti-Slip. Under the hood, Pontiac installed a 2.5 . It has been my experience that the 66 up axle is longer. Jeremy. var u='http://50chevy.freeservers.com/cgi-bin/sitestats.gif?p='+escape(location.href)+';r='+escape(document.referrer)+';t='+t.getTime(); Once the wheels and axle was centered under the car I was able to raise and lower the wheels with my floor jack to check for clearance at different ride height and suspension travel. GU5 - 3.23's Optional auto trans gear ratio. Mavericks 8", All '75-77 6's & 8's M&M CUSTOM. 0000008567 00000 n Six-cylinder truck engine block and head casting numbers. i.e. '70's Ford Grenada 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). Cars from all the traditional drag racing classes are being built and/or restored, but among the most popular of these period-correct builds are the cars riding high on solid front axles and sporting fenderwell headers: gassers. %twE_( H@v7H f)p* 0KO|O n>+ Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars . 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? 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. '72 Cricket 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? Identified by casting number & number of cover bolts. Q: What cars did they originally come in? SiteStats_3379(); Correct two piece design posi unit, exact for only 67 - 69 Firebird 10 bolt 8.2 rears. The Borg-Warner HD rear end was dropped and replaced with the old 7.625 (7 5/8) inch rear end. Axle Images: Axle Details. Q: Why do Pontiac/Olds 9.3 parts cost more than those for a Ford 9-inch? In searching the web I found the following links that have a massive of information on rear end widths and wanted to share. 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 ; . but the body with is 1" wider on 66-67. "Hy-Tuff" axles are available for it from Moser and Mark Williams in any length (needed to . Rusty but Rare 1976 Chevy K10 Sport Truck Revival! I believe the width, outside axle flange to outside axle flange, is 64 inches. 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. 0000000991 00000 n '67 to '70 Mustang/Cougar 8 cyl. '65 Cadillac, '66 Buick Wildcat Several features are common to most gassers. I came up with a cheap simple method to confirm the results of the measurement taken with the loose wheels. plate to backing plate. What is the width of a 1959 pontiac rear end? . If in doubt, consult one of our differential experts at (800)510-0950! There are three different third-member castings, but all will install into any '57-'64 Pontiac/Olds housing. 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. Part Number: YGA-21289. The non C-clip 8.5" 10 bolt, type "C" rearend was used in some 1969-'72 Pontiac GP and 1970-'72 Monte Carlo. '72 Chrysler. The early Nova's 62-67 would be about 2" shorter. 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 . Wilwood Engineering designs and manufactures high-performance disc brake systems. <<3d7f7a4e8421a74f9b85ec848848f3a1>]>> You can do this by multiplying by the gear ratio. 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. The two makes used very similar differentials through the mid-'40s and into the '50s. What is the width of a 1959 pontiac rear end? 0000002004 00000 n 0000015097 00000 n 66-69 axle does not include 64 65 . 5" for small cars 5" - 6" for intermediate "Stovebolt" Specifications. '69 Nova '66-67 Chevrolet Big Car, '72 Charger Task Force width ranges at this time. $1,825.00. 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. 71-76 Full Size Cars " note 64 64 axle is same. Rey Payumo of Kailua, Hawaii found this 1963 Chevrolet Impala packed with junk in a garage in Hayward, California. 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. Last Update: Feb. 24, 2023, 5:12 a.m. 100 x 4.12. '70 Nova A Chevy 1/2 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear axle. 59" 68-83 Corvette , 67-70 Mustang/Cougar/Fairlane, 60" 55-64 Chevy Building a gasser is a satisfying way to blast down the track, turn some heads, and salute the good old days of racing. J.T. lx ?ZXj^|\\(|ka(XKIg#+ may be different than pictured. Its pretty easy to find a good one if you are in an area with a few junkyards. 0000002353 00000 n While it still may take an investment in time to locate a good third-member core and housing for your gasser project, these components are still relatively plentiful and quite affordable. The Rochester Quadrajet carburetor was featured on the top spec GTO. 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. If you're running a blower, turbo, nitrous, etc you will probably want to step up to a larger rear like a 9" or 12 bolt. Understanding Aluminum Heads and Spark Plugs, OK Go Needing/Getting ~ Its All In The Timing, An Online Magazine for DIY Hot Rod Builders. Popular Automatic Transmission Identification Chart; Rear-End Widths of Classic American Cars; Follow Us on Flipboard . 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 . GU3 - 3.08's V6 gear ratio. '68 AMX GM with 7.5 & 7.625 Ring Gears : 1985-1997. cars 6" - 8" for large cars, '71 Colt . How To Box-In a Differential / Solid Axle Rear-End Housing; . Plywood pieces work well for shims. GU2 - 2.73's Standard auto trans gear ratio. 0000012085 00000 n Approximate rear end widths measured from backing plate to backing plate. Here you can see the three white paint splotches identifying the pinion size and the gears. ?|-Zce14^nF%67( }fSRaQfqX?|{8{>? VX5EX=b :"-'k>.VbyV^-nWxv-WgUtpo>sMhlI4ZV<4+s>|2k>\x{7M^^x. Cylinders. Rear-end track width measurements of classic American cars including Chevrolet, Ford, and Mopar vehicle rear axle widths. In 1957, the Pontiac and Oldsmobile designs were combined and improved upon, producing a brand new 9.3-inch differential. Drag Racing 101 ~ Everything You Need to Know! This posi has 4 pinion gears, which makes it about 2 times as strong as the Chevy Eaton posi. '71 - 72 Pinto It may not display this or other websites correctly. 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 . '73 Ventura, '65 Ram American 3.21 to 3.92. 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. Its narrow front end with a plastic, wrapped-around bumper featured fog lights as an option. Dec 26, 2008. '69 Firebird '67 Chevrolet Six The 8.5-inch 10-bolt rearends have ten 3/4-inch hex head bolts with 7/16-20-inch left-hand thread bolts that hold the ring gear to the carrier. 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JavaScript is disabled. endstream endobj 29 0 obj<>stream 60" 60's GMC and trailer 0000006068 00000 n Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. '69 Javelin Six , '70 dodge Interest in vintage drag racing is now approaching a rapid boil. Drag Racing 101 ~ Everything You Need to Know! Rear End Widths - - Back - - Home > Specs > Rear End Widths : Representative for comparison purposes only. Source for tire and wheel application fitment data. 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. . Suspension Width (Flange to Flange), Ford Mustang II/Pinto & Ironically the heavy-duty nature of the 9.3 worked against it and played a part in its demise. Rim Width Measure from the inside of the outer lip at the bead seating point to the inner lip. B. Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars . Dick this in no way reflects upon your statement but you make an excelent point when you stated " I read enough times that". The new 9.3-inch provided outstanding durability when subjected to abuse from all classes of race cars, including Top Fuel. The intake valve size increased to 2.11" and the exhaust valve increased to 1.77"in size from the previous model. * Ring #s GM 40 13 == 67 - 8 - A. The following is a general list of rear ends and their dimensions to help narrow the search for a possible candidate to replace the torque tube rear end or just get a better set of gears for highway driving. a Custom Classic Truck" Peterson Publication; June or July 1999,