pontiac rear end width chart

The Borg-Warner HD rear end was dropped and replaced with the old 7.625 (7 5/8) inch rear end. BOP, Pontiac, Each. '72-75 Datsun Pickup Newest [ January 23, 2023 ] Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory Roadkill Powersports function SiteStats_3379(){ 0000005198 00000 n 62" 64-77 Chevelle, 73-76 Torino, 89 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. The Rochester Quadrajet carburetor was featured on the top spec GTO. '72-73 Torino, STOCK CENTER TO CENTER SPRING PERCH DISTANCE, '69 Chevrolet Mopar Rear Axle. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. I actually had the axles in less than 4 days! The now famous Ford 9-inch, with it's unique, straddle mounted pinion, offered great strength for its weight, but even the heavy-duty nodular-iron version suffered from weaknesses that the 9.3-inch did not. 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. Willwood Engineering. 0 June 5, 2022 Posted by: Category: Uncategorized Forbes and various locations throughout the Web and Automotive Magazines. Registered: 16 years ago. Lincoln Versailles, Regal with 10 bolt axle, S-10 P.U., 65-67 Nova. 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. But when it came to rearends, the overwhelming favorites were those our of '57-64 Pontiacs and Oldsmobiles. Popular Tools & Look-Ups. The housing came in a couple of weeks but without the axles. How To Box-In a Differential / Solid Axle Rear-End Housing; . Is a pontiac center section as olds rear ends of that era? Prices and availability are subject 1967 Pontiac GTO - Wheel & Tire Sizes, PCD, Offset and Rims specs | Wheel-Size.com. 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. '69 Dodge Van, '71 Torino . 40/13. '67 Mustang Six , '68 AMX 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. pontiac rear end width chart. Stop listening to your street rodder buddy and back away from the 9-inch. The 1' wider that was stated in paul/chuck 's book may have been miss spoke. My rear is the bolt in axles. 1969. 0000001291 00000 n As the popularity of the Ford 9-inch increased the P/O 9.3 began to fade from the scene. It has been my experience that the 66 up axle is longer. Find your GMC/Chevy vehicle in the chart below and click on the illustration for a larger view. My '64's measure 54.25". 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. $5 Off Your $100 Mobile App Purchase . 18 21 '70 Dodge, '71-77 Maverick Once I had the wooden rear end made I attached the wheels to the small wood axle flanges with wood screws and large washers to stop the screws from pulling through the lug nut holes. 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. Mavericks 8", All '75-77 6's & 8's However, the 9.3-inch differential was saved from obsolescence by a Texas-based company called Fabcraft Metalworks and its owner, Brad Duerst. plate to backing plate. But the components should at least be grounded in the era. Its pretty easy to find a good one if you are in an area with a few junkyards. Why not a Ford? } 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. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Advance Design Trucks seem to be using rear ends with widths ranging from 58"- 62". Plywood pieces work well for shims. Part Number: YGA-21289. 5E med-duty 4-pinion. 1940 engine numbers run 2697268 through 3665902. lx ?ZXj^|\\(|ka(XKIg#+ Pontiac/Olds rearends had been widely used full width under Gassers and other cars and even though lots of slingshot dragster pilots had their legs draped over a narrowed version, custom-width rearends were seldom seen in other applications and almost never under a street car. The Trophy Track's strengthened bearing hubs even use larger-than-stock bearings, the same ones found on spools. 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. 41/14. endstream endobj 19 0 obj<> endobj 21 0 obj<> endobj 22 0 obj<>/Font<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 23 0 obj<> endobj 24 0 obj<> endobj 25 0 obj[/ICCBased 36 0 R] endobj 26 0 obj<> endobj 27 0 obj<> endobj 28 0 obj<>stream '72 Dart During the production run a third-generation gear case was introduced, oddly enough with slightly smaller pinion bearings, which was probably a cost-cutting move. 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC xref Approximate rear end widths measured from backing plate to backing plate. Trans Am. 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. 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. note 64 64 axle is same. '72 Cougar 60" 60's GMC and A Chevy 1/2 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear axle. The following tags will show a 4L80E transmission as an example. GM quit making the 9.3-inch in 1964. "+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. 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. 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. var u='http://50chevy.freeservers.com/cgi-bin/sitestats.gif?p='+escape(location.href)+';r='+escape(document.referrer)+';t='+t.getTime(); GM with 7.5 & 7.625 Ring Gears : 1985-1997. GU5 - 3.23's Optional auto trans gear ratio. Billet-steel yokes and carrier caps could be added to make the 9.3-inch nearly bomb-proof. var t=new Date(); Cylinders. 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. 70-81 4wd 6 lug reared 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. . '67 Chevrolet big car In 1957, the Pontiac and Oldsmobile designs were combined and improved upon, producing a brand new 9.3-inch differential. 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. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. GMC V-6 0000000911 00000 n All housings have strong, tapered axle tubes, come in numerous widths, and sport a variety of suspension brackets. i.e. Pontiac labeled theirs Safe-T-Trac while Oldsmobile called it Anti-Slip. . Additionally, it can be a relatively affordable way to enjoy a day at the track. . '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger It has the 4.75" bolt pattern, and ratios are usually 3.55-3.73, but sometimes you'll find a 3.36. '70's Ford Grenada Rear-end questions. I just measured my 60' Pontiac and it is the same as my 62' Pontiac. 1985 to 1989: 7.625 inch ring gear, 26 spline axle. Underneath the back end of an overwhelming majority of gassers was a 1957-'64 Pontiac/Oldsmobile 9.3-inch differential. How to cut your Ford F100 long bed to short bed in a weekend DIY project ~ Two-Part video details cutting frame and bed. 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). I'm not sure of the Task Force width ranges at this time. For many years prior, Olds and Pontiac differentials had been a dominant rear axle in drag racing and other motorsports. of extensive information was contributed by R. Welch: Original Vehicles |;|tB70t:`!t;?Yp?o^16Y*Ra(k ;6te64^bv n+;:G57@hbM_5 N Advance Design Trucks seem to be using rear Beginning with a new line of U.S.-made gearsets in desirable ratios, Fabcraft rekindled the flickering flame of the 9.3-inch. Aftermarket support followed in the form of beefy axles, gears, spools, couplers, and Mickey Thompson's aluminum and magnesium centersections. '66 Falcon, '69 Chevrolet User Info. to change without notice. The current axle needs to be measured to verify width, because it plays an important part in determining what rim backspacing is necessary. The Olds and Pontiac both used the same center section. [ July 26, 2022 ] Reversing Gears ~ Rescuing One's Own Derelict 1967 Pontiac GTO Builds and Examples [ July 24, 2022 ] . charles coker, 1953 pontiac tech advisor. 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. Here you can see the three white paint splotches identifying the pinion size and the gears. '70 Nova There have been non C-clip rearends found in Chevelle wagons, and some El Caminos through at least 1974. I believe the width, outside axle flange to outside axle flange, is 64 inches. Copyright 2023 Welcome To Rodplans! Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. 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? Car, 67-69 Camaro, 64-67 Chevelle, For a variety of reasons, not the least of which is the current Gasser craze, Pontiac and Olds rearends are enjoying renewed popularity. You must log in or register to reply here. Actual wheel track could be as much as 6" to 8"depending on drum size: '67 to '70 Mustang/Cougar 6 cyl. NFTs Simplified > Uncategorized > pontiac rear end width chart. In this 489 case it is 3:91 gears and a 1 7/8 pinion. 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. Product By Category; Products By SKU/ID; . 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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. 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. '69 Nova Maverick 5 Lug 8", 49-51 Ford, 57-59 Ford 9", 58" 78-88 Mid The S10 10bolt 7.5/7.625" rear end is a good choice for the light low to medium horsepower small block cars. 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 . 2D reg-duty / 4D med-duty 4-pinion. <<3d7f7a4e8421a74f9b85ec848848f3a1>]>> Quick question, I'm looking at a '50 Pontiac and was wondering if it had a torque-tube or a driveshaft. 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. 1990 to 1992: 7.625 inch ring gear, 28 spline axle. 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. The final drive ratio is identified with 2 or 3 letters codes. B-O-P axles also have identifying grooves traveling along each side of . list of rear ends and their dimensions to help narrow the search for a possible pontiac rear end decoder year ratio open posi model notes: . Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass. 70 2wd 6 lug rear end 12 bolt Possible gear ratio's By designing ring-and-pinion sets to fit the previously less-attractive, but more available, Series II OE carriers, performance ratios could now be utilized without the need for an unfavorable ring-gear spacer. Rim Width Measure from the inside of the outer lip at the bead seating point to the inner lip. 0000006915 00000 n These smaller volumes and domestic content result in slightly higher prices. Drag Racing 101 ~ Everything You Need to Know! Information provided by:Joe GarciaThe Resto Rod Shop. They were robust, drop-out-style third members that offered the strength and serviceability racers required. Mercury Capri/Bobcat, Monte Carlo, Regal, etc. for highway driving. You bring the gumption. '73 Ventura, '65 Ram American L = Low - Zero to Negative Offset, Offset typically RWD (Rear . Q: Why do Pontiac/Olds 9.3 parts cost more than those for a Ford 9-inch? Engine Numbers. 0000008567 00000 n Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars . Like most american muscle cars of the Day the Pontiac GTO was a front engined rear wheel driven car. Vehicles with Similar . The 1967 GTO came in 3 speed Automatic and a 4 Speed manual. jack39rdstr # 169783 04/02/10 02:03 PM. '41 -48 Ford, '68-72 Chevelle '69 Oldsmobile 88, '72 Chrysler Jeff Smith: When Chevrolet built the first Camaros in 1967, they were already in production of both 10- and 12-bolt rear-end housings. manufactured by Pontiac in United States. 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. Posts: 8. 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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. JavaScript is disabled. The 8.75-inch had slightly larger, 30-spline axleshafts compared to the P/O's 29-spline shafts; but by 1959, big 31-spline factory shafts were standard, and aftermarket shafts for the 9.3-inch eliminated any supposed shortcomings. . It is now late November and I still do not have my axles. Rusty but Rare 1976 Chevy K10 Sport Truck Revival! The two makes used very similar differentials through the mid-'40s and into the '50s. '67 to '70 Mustang/Cougar 8 cyl. "SPECIAL" CARS - 1938 Pontiac Special six. Floor jack permits you to raise and lower wheels to check for clearance. Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale. This posi has 4 pinion gears, which makes it about 2 times as strong as the Chevy Eaton posi. (Dart/Duster) with V8&3/4 axle, Table taken from "How to Build ends with widths ranging from 58"- 62". well i have 1 from f 150 82 b/plate 2 b/plate it is 58". Plywood pieces work well for shims. And even though new internals were available from Fabcraft, the carriers were simply becoming too difficult to find. Rear axle widths. $1,825.00. '71 - 72 Pinto Richmond Gear calls the 57-64 Olds/Pontiac rear a GM 9.3" Axle (the ring gear is 9.3 inches). Popular Automatic Transmission Identification Chart; Rear-End Widths of Classic American Cars; Follow Us on Flipboard . Your Nova should be the same as 67-69. A: By casting numbers and date codes, along with other external characteristics, all of which are shown in the manual by Zach Davidson and Brad Duerst. 5" for small cars 5" - 6" for intermediate Very hard to find set, being as this is version is not being reproduced. Many aftermarket options exist with all of the appropriate mount points. '67 Mustang 0000002038 00000 n There are three different third-member castings, but all will install into any '57-'64 Pontiac/Olds housing. Factory Width. Hot Rod Blueprints, Drawings and Tech Tips For The Hot Rod Enthusiast!. The P/O rearend and parts were getting harder to find and there were more Ford 9-inchers being made every day. '73 Ventura, '73 Mustang, '36 Plymouth, '54-56 Ford Pickup 71- Newer 2wd trucks use a 5 on 5 lug pattern Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale. Source for tire and wheel application fitment data. . while a folding bench was standard for the rear passengers. SiteStats_3379(); What I did is shown below in the photos. Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. I placed the order with Speedway motors in late July for my rear end housing and Currie axles. '72 Cougar, '74 Pontiac, '49 Plymouth, '61 Chevrolet Impala I have heard that a 1st gen Pontiac Firebird rear is wider, but I am not sure by how much. RWD (rear-wheel drive), automatic 4-speed gearbox. Drag Racing 101 ~ Everything You Need to Know! The Firebird rear end would have been a BOP 8.2 10 bolt. Ford continued cranking out the 9-inch in vast quantities well into the '80s. GU6 - 3.42's Standard manual trans gear ratio. '71 Comet , '71- 72 Pinto, '39 -48 Chevrolet, '68 GTO May 7, 2009. That being said, if you have at least 2" of clearance (and preferably more) between your stock tire/wheel combo and the frame or exhaust pipe, whichever is closest to the tire, then a 56" rear end width could possibly fit. Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188. '71 Comet Good third-member cores are also relatively easy to come by, as many are now being saved from recyclers by fellow enthusiasts. 3:08, 3:40, 3:73 Valves. 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. Mickey Thompson even produced aftermarket Olds and Pontiac magnesium gear cases that were frequently used in dragsters. The non C-clip 8.5" 10 bolt, type "C" rearend was used in some 1969-'72 Pontiac GP and 1970-'72 Monte Carlo. 59" 68-83 Corvette , 67-70 Mustang/Cougar/Fairlane, 60" 55-64 Chevy %%EOF Someone may correct me, but as I recall 1959 was the first year for the "Wide Track" Pontiac. 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. 0000009416 00000 n Both of these are semi-floating axles. Professional technical support is available . Interest in vintage drag racing is now approaching a rapid boil. This reduced weight and eliminated the stock suspension, producing a spacious engine bay that eagerly accepted the chosen powerplant. 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. HVMo0WJ~H|V`-e)6`!$)=-~6x@h1|o 66-69 axle does not include 64 65 . The 8.2" BOP (Buick, Oldsmobile, Pontiac) model is slightly different in that it uses pressed on axle bearings and instead of c-clips . SKU: CE-GMG7887X. You can do this by multiplying by the gear ratio. They're tough, right? '72 Cricket We carry everything from the 7.25" IFS front end parts, to the large 11.5" rear end parts for 1-ton trucks.We make it easy to verify your exact rear end by providing specs and year, make, and model applications for .

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