Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars, STOCK CENTER TO CENTER SPRING PERCH DISTANCE, Original VehiclesRear Suspension Width (Flange to Flange), Donor Vehicles Front and RearSuspension Width (Flange to Flange), Items I'm not sure of the * Ring #s GM 40 13 == 67 - 8 - A. Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale. Rear Wheel: Production Years for Series : 1964 - 1967 : Price : $2,437-$3,095: Weight : 3015 lbs | 1367.581 kg: Performance. What I did is shown below in the photos. Brand new gears in ratios from 3.42 through 5.38 could be purchased and mounted on a new forged-steel spool with 31- or 35-spline axles. candidate to replace the torque tube rear end or just get a better set of gears '67 to '70 Mustang/Cougar 8 cyl. Approximate rear end widths measured from backing plate to backing plate. Drag Racing 101 ~ Everything You Need to Know! ; Home 2; Home 3; Home / / pontiac rear end width chart. The actual width that I made out of wood was based on both the measurements I had taken with the loose wheels and my research to determine what widths were available for purchase. & Conditions, Ford Mustang II/Pinto & Mercury Capri/Bobcat, Monte Carlo, Regal, etc. Ford continued cranking out the 9-inch in vast quantities well into the '80s. This engine produces a maximum power of 142 PS (140 bhp - 104 kW) at 5200 rpm and a maximum torque of 230.0 Nm (169 lb.ft) at 5200 rpm. Rusty but Rare 1976 Chevy K10 Sport Truck Revival! HVMo0WJ~H|V`-e)6`!$)=-~6x@h1|o hi don, there is no major difference in the pontiac differential from 1949 to 1956 other than rear brake related parts. INFO GUIDE: 1967 Pontiac GTO (Coupe, Hardtop & Convertible) 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. The Rochester Quadrajet carburetor was featured on the top spec GTO. The high-volume production runs of Ford-9 inch components allow them to be relatively inexpensive. BOP, Pontiac, Each. stock from flange to flange it is 60 ". 1982-1997. 0000003369 00000 n 0 cars 6" - 8" for large cars, '71 Colt 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. 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 . . The Pontiac/Oldsmobile 9.3-inch is your axle. 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. Picture is from parts book. Dec 20, 2007. PONTIAC Firebird Specs & Photos - autoevolution The 78-88 mid size GM cars use a 7.5" 10 bolt, which is about 58/5" wide. Beginning with a new line of U.S.-made gearsets in desirable ratios, Fabcraft rekindled the flickering flame of the 9.3-inch. Compared side-by-side with the Chrysler, it boasted stronger gears and larger bearings. You're building a gasser. Dont Be That Guy, Reversing Gears ~ Rescuing Ones Own Derelict 1967 Pontiac GTO, How To Paint a Lace Roof on the Cheap Using Grandmas Curtains, Exploring an Antique Junkyard in the Hills of West Virginia, Engine, Transmission, Chassis Swap Donor Vehicle Look-Up, Early Ford Beam Axle Identification and Dimensions, How to Apply Rust Encapsulator Plus to a Rusty Rear End, How To Box-In a Differential / Solid Axle Rear-End Housing, How To Select Proper Rear-End / Differential Gear Ratio, Wheelbase Measurements for Popular Classic Cars, 1955 Chevrolet 3100 Step Side Pickup Truck Build, How To Cut Your Long Bed to a Short Bed in a Weekend, Engine / Transmission / Chassis Donor Search, Project Cars and Part Donor Cars For Sale. Rear-end questions. These smaller volumes and domestic content result in slightly higher prices. Good luck. function SiteStats_3379(){ Axle Shaft, Rear, 1541H Alloy, 28 Spline, 29.875 in. . pontiac rear end decoder year ratio open posi model notes: . 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. rear end width chart - Chevy Message Forum - Restoration and Repair Help HVr0*u9$K;IG]&U&"x\s. 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. Its pretty easy to find a good one if you are in an area with a few junkyards. Will only work with bolt in style axles. 53.6 -- 1971-'77 Chevy Vega, 1973-'77 Pontiac Astre, 1975-'80 Chevy Monza, Buick Skyhawk, Olds Starfire, 1976-'80 Pontiac Sunbird 112.0 coupe; 116.0 sedan,wagon, 61.5, 60.7 -- 1973-'77 Oldsmobile Cutlass, 442 Approximate rear end widths measured from backing plate to backing plate. A Chevy 1/2 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear axle. B-O-P axles also have identifying grooves traveling along each side of . . It's not to the same level as a concours-correct restoration; no judge will deduct points for an incorrect paint code. '67 Mustang Six , '68 AMX '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger Posts: 8. You can do this by multiplying by the gear ratio. with 10 bolt axle, "A" body '70 Duster , '71-77 Maverick 47 - 54 rear end width - The Stovebolt Forums It has been my experience that the 66 up axle is longer. Rear Suspension Width (Flange to Flange), Donor Vehicles Front and Rear 0000001170 00000 n The Trophy Track's strengthened bearing hubs even use larger-than-stock bearings, the same ones found on spools. Building an example that truly reflects what was around back then takes a certain passion for correctness. GMC V-6 used a 3.21 Dana 44 used a standard chevy 1310 yoke, Dana 60 used the heavy duty yoke which takes the larger 1350 yoke. Under the hood, Pontiac installed a 2.5 . There's absolutely no excuse to use the wrong differential in your gasser. 1985 to 1989: 7.625 inch ring gear, 26 spline axle. (Rear Wheel Drive) +20 offset. pontiac rear end width chart - nftcollectionlab.com The1971-'72 Buick GS/Skylark and Olds Cutlass A-body 8.5 10 bolt did not have C-clip axles. Suspension Measurements - Quick Performance Approximate rear end widths measured from backing plate to backing plate. PY Online Forums - Bringing the Pontiac Hobby Together, Classic TECH- specs, codes, resto issues FORUMS. PDF Differential ID Chart - Summit Racing Equipment This assembly used an 8.2-inch ring gear diameter and 28-spline axles for Camaros, Chevelles, Impalas and even the early Chevy II's. Rear End Widths - - Back - - Home > Specs > Rear End Widths : Representative for comparison purposes only. pontiac rear end width chart . 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. Suspension Width (Flange to Flange), Ford Mustang II/Pinto & Many Ford 9-inch parts are made offshore; they have smaller bearings and smaller diameter gears requiring less material. 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. note 64 64 axle is same. 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 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. Other changes were made to the limited-slip carrier, but strength was not adversely affected. Casting # Year: Body: Size: Notes: 2070051: 1960 - 71: A . Originally posted by SUNNYD @Mar 22 2007, 10:23 PM~7534589. No one is making new 31-spline side gears at this time, which is not good. For the do-it-yourselfer, Fabcraft offers a full-color manual with excellent tech info on the differential. Popular Automatic Transmission Identification Chart; Rear-End Widths of Classic American Cars; Follow Us on Flipboard . 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. It has the 4.75" bolt pattern, and ratios are usually 3.55-3.73, but sometimes you'll find a 3.36. ). Prices and availability are subject '67 Mustang V-8, '69 Firebird 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. 1940 engine numbers run 2697268 through 3665902. 0000000016 00000 n Willwood Engineering. (rear-wheel drive), automatic 3-speed gearbox . Bigger engines introduced in both Oldsmobiles and Pontiacs for 1959 prompted the second generation of these rearends with 31-spline axles, which were reportedly 22 percent stronger than the previously used 29-spline shafts. Fabcraft also offered complete components for the differential, including all necessary bearings, seals, shims, limited-slip clutches, solid spacers, and crush sleeves, as well as beautifully refurbished OE parts. 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. with 10 bolt axle. $5 Off Your $100 Mobile App Purchase . %PDF-1.4 % In head/2 per cylinder. '71 - 72 Pinto My '64's measure 54.25". '72 Cricket Trans Am. '66 Falcon, '69 Chevrolet Maverick 5 Lug 8", 49-51 Ford, 57-59 Ford 9", 58" 78-88 Mid Product By Category; Products By SKU/ID; . '72 Cougar Terms The 10-bolt was used in all the low performance applications. Your differential is the set of gears that allows your vehicles driven wheels to revolve at different speeds by splitting your engine torque in two directions, An Online Magazine for DIY Hot Rod Builders. 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. Six-cylinder truck engine block and head casting numbers. For some time, only a small handful of ratios were available in new gears. Q: What cars did they originally come in? It may not display this or other websites correctly. The two makes used very similar differentials through the mid-'40s and into the '50s. Displays PONTIAC bolt patterns, wheel sizes and dimensions by model or view all matching vehicles that will swap or interchange with PONTIAC wheels. 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. Rear-End Widths of Classic American Cars - Roadkill Customs 1967 Pontiac GTO - Wheel & Tire Sizes, PCD, Offset and Rims specs | Wheel-Size.com. 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. also note on the A4's (auto's) shifter console if the gear selector for 1 is missing. "Hy-Tuff" axles are available for it from Moser and Mark Williams in any length (needed to . I have heard that a 1st gen Pontiac Firebird rear is wider, but I am not sure by how much. May 7, 2009. In 1957, the Pontiac and Oldsmobile designs were combined and improved upon, producing a brand new 9.3-inch differential. But when it came to rearends, the overwhelming favorites were those our of '57-64 Pontiacs and Oldsmobiles. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. A: They came in all fullsize Pontiacs and Oldsmobiles from 1957-64. 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. The intake valve size increased to 2.11" and the exhaust valve increased to 1.77"in size from the previous model. Rear end gear ratio???? - LS1LT1 Forum Is a pontiac center section as olds rear ends of that era? charles coker, 1953 pontiac tech advisor. Picture is from parts book. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. 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. '67 Mustang Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. Rear End Width Massive Data Base Information - Chevy Tri Five Forum Additionally, it can be a relatively affordable way to enjoy a day at the track. I did a quick google search for 65 impala rear end, and 65-66 impala rear end came up a lot. the wider housing is not 1" closer to 3/4 . '72 Cougar, '74 Pontiac, '49 Plymouth, '61 Chevrolet Impala GU2 - 2.73's Standard auto trans gear ratio. All correct GM codes and part numbers. 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. <<3d7f7a4e8421a74f9b85ec848848f3a1>]>> 0000001291 00000 n 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 ; . Model. 10 bolt rear carrier identification - Drivetrain Tech - First Terms of Service. birdfire.com : 67-81 rear end - Free %%EOF Dec 26, 2008. GM 8.2" and 8.2" BOP Axle Parts, Gears, and Upgrades - Drivetrain Shop Here you can see the three white paint splotches identifying the pinion size and the gears. The early Nova's 62-67 would be about 2" shorter. Currie Centurion Housing - Classic notchback looks in a new, high-strength, American-made housing, that features 3-inch diameter axle tubes, and CNC machined face flange, for a flat leak-free . I actually had the axles in less than 4 days! The correct width for 59' & 60' is 63-1/4" I believe. Forbes and various locations throughout the Web and Automotive Magazines. The 1967 GTO came in 3 speed Automatic and a 4 Speed manual. Interest in vintage drag racing is now approaching a rapid boil. The following list (Dart/Duster) with V8&3/4 axle, Table taken from "How to Build 0000007740 00000 n On Gen1, the code is "hit" on the right side of the rear axle (passenger side) with the inscriptions facing the front of . So what we are left with is this: A fully capable, period-correct, brute of a differential with complete aftermarket support. 2/4-door sedan body type. 1982 to 1984: 7.5 inch ring gear, 26 spline axle. For many years prior, Olds and Pontiac differentials had been a dominant rear axle in drag racing and other motorsports. Technical - Pontiac/Olds Rearend TECHpost it here 60" 60's GMC and Cylinders. 2D reg-duty / 4D med-duty 4-pinion. 1/4 Mile : 13.1 seconds. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. I just measured my 60' Pontiac and it is the same as my 62' Pontiac. 66-69 axle does not include 64 65 . find the 1/2 ton size yoke on a dana 60. 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There have been non C-clip rearends found in Chevelle wagons, and some El Caminos through at least 1974. The '70 to '81 Camaro rear end is 61 inches. According to published lists, the 55-64 Chevrolet rear end width is 60" from wheel mount surface to wheel mount surface. 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. Today finding a P/O 9.3 may take some searching and it's helpful to know what to look for. '65 Cadillac, '66 Buick Wildcat CK 15/35, S10, RV. Rear Axle Identification : Drivin' It Home of extensive information was contributed by R. Welch: Original Vehicles 1939 engine numbers run 1915447 through 2697267. 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. $1,825.00. What is the width of a 1959 pontiac rear end? 73-77 GM A-body axle width? | Hot Rod Forum '72 Charger You bring the gumption. Source for tire and wheel application fitment data. 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. . Valves. The 1' wider that was stated in paul/chuck 's book may have been miss spoke. June 5, 2022 Posted by: Category: Uncategorized Detroit gear & axle : AB : 3.36 : No : Powerglide : Detroit gear & axle : AC : 4.11 : No : 3 speed, O.D . Post: rear end width chart (Topic#173541) greg pharr Contributor Posts: 897 Loc: North Mississippi Reg: 07-09-03. Chrysler sent out the last of its 8.75-inch rearends in the early '70s. A: Ford 9-inch is like the small-block Chevy of rearends. 8.5 firebird rearend width? | Team Camaro Tech My rear is the bolt in axles. PONTIAC Bolt Pattern Cross Reference and Wheel Sizes In 1958 a good thing got better when limited-slip differentials were offered. xref 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. You must log in or register to reply here. . Third Generation (1982 - 1992) Technical Data