66-69 axle does not include 64 65 . startxref 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. . 1958-1970 Full size Chevy rear differential identification chart. Contributing information were Bob Welch, J Forbes and various locations throughout the Web and Automotive Magazines. Engine Numbers. 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. %%EOF 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. Like most american muscle cars of the Day the Pontiac GTO was a front engined rear wheel driven car. 0000001291 00000 n Accurate Differential Identification is the first and most important step in your differential repair, upgrade or overhaul project. 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Rusty but Rare 1976 Chevy K10 Sport Truck Revival! Registered: 16 years ago. 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 . 0000007740 00000 n 0000015097 00000 n For many years prior, Olds and Pontiac differentials had been a dominant rear axle in drag racing and other motorsports. 71- Newer 2wd trucks use a 5 on 5 lug pattern 60" 60's GMC and Ford. 0000009416 00000 n 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 301 was Pontiac's only V-8 left in production by 1979. L = Low - Zero to Negative Offset, Offset typically RWD (Rear . 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. Rear End Widths - - Back - - Home > Specs > Rear End Widths : Representative for comparison purposes only. I came up with a cheap simple method to confirm the results of the measurement taken with the loose wheels. Displays PONTIAC bolt patterns, wheel sizes and dimensions by model or view all matching vehicles that will swap or interchange with PONTIAC wheels. I'm running the wider blazer rear end . They're tough, right? Wheel Stud *. Terms You are using an out of date browser. . 18 21 Identified by casting number & number of cover bolts. GU3 - 3.08's V6 gear ratio. 0000001170 00000 n A solid front axle was found under the front of nearly every gasser. 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 . Drag Racing 101 ~ Everything You Need to Know! 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 . PY Online Forums - Bringing the Pontiac Hobby Together, Classic TECH- specs, codes, resto issues FORUMS. Will only work with bolt in style axles. Is a pontiac center section as olds rear ends of that era? For the do-it-yourselfer, Fabcraft offers a full-color manual with excellent tech info on the differential. 0000002277 00000 n 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. 3:08, 3:40, 3:73 Six-cylinder truck engine block and head casting numbers. var I=new Image(1,1); I.src=u; the versailles / granada rear ends from flange to flange is 58.5". Buick/Olds/Pontiac axles are typically retained with bearings. of extensive information was contributed by R. Welch: Original Vehicles As a result, many tribute cars and gasser-inspired builds had to stray from correctness. As the popularity of the Ford 9-inch increased the P/O 9.3 began to fade from the scene. There are three different third-member castings, but all will install into any '57-'64 Pontiac/Olds housing. jack39rdstr # 169783 04/02/10 02:03 PM. 66-69 axle does not include 64 65 . Stop listening to your street rodder buddy and back away from the 9-inch. 70 2wd 6 lug rear end 12 bolt Possible gear ratio's The Pontiac/Oldsmobile 9.3-inch is your axle. Beginning with a new line of U.S.-made gearsets in desirable ratios, Fabcraft rekindled the flickering flame of the 9.3-inch. Cylinders. In searching the web I found the following links that have a massive of information on rear end widths and wanted to share. Maverick 5 Lug 8", 49-51 Ford, 57-59 Ford 9", 58" 78-88 Mid Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. They were tough with 9.3-inch ring gears, big pinion shafts, and large-diameter bearings and tough axles. '72 Cricket Suspension Width (Flange to Flange), Ford Mustang II/Pinto & sized GM Car, Malibu/Monte Carlo (82 up Metric Studs), 80 Granada & 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 SiteStats_3379(); The Olds and Pontiac both used the same center section. Items plate to backing plate. Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188. Car, 67-69 Camaro, 64-67 Chevelle, 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. I've read enough times that '64/'65 are 54.25" and '66's are an inch wider that I believe it. 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. 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. GU5 - 3.23's Optional auto trans gear ratio. The intake valve size increased to 2.11" and the exhaust valve increased to 1.77"in size from the previous model. ZE reg-duty / 4E med-duty 4-pinion. 0000000911 00000 n Jeff Smith: When Chevrolet built the first Camaros in 1967, they were already in production of both 10- and 12-bolt rear-end housings. Q: What cars did they originally come in? Good luck. "Hy-Tuff" axles are available for it from Moser and Mark Williams in any length (needed to . //-->. Mercury Capri/Bobcat, Monte Carlo, Regal, etc. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. Aftermarket support followed in the form of beefy axles, gears, spools, couplers, and Mickey Thompson's aluminum and magnesium centersections. Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. The1971-'72 Buick GS/Skylark and Olds Cutlass A-body 8.5 10 bolt did not have C-clip axles. 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. (Rear Wheel Drive) +20 offset. Click the above picture to view full size. 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. 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 . Source for tire and wheel application fitment data. 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. GM with 7.5 & 7.625 Ring Gears : 1985-1997. There have been non C-clip rearends found in Chevelle wagons, and some El Caminos through at least 1974. 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 . Needle BUILD IT YOURSELF - PARTS LISTS BUSHINGS TO ADAPT TUBE SIZE . '70 Nova 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 . Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. 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. '66 Falcon, '69 Chevrolet "SPECIAL" CARS - 1938 Pontiac Special six. In this 489 case it is 3:91 gears and a 1 7/8 pinion. Length, GM 8.2 in. Correct two piece design posi unit, exact for only 67 - 69 Firebird 10 bolt 8.2 rears. pontiac rear end width chart . So what we are left with is this: A fully capable, period-correct, brute of a differential with complete aftermarket support. Building an example that truly reflects what was around back then takes a certain passion for correctness. may be different than pictured. charles coker, 1953 pontiac tech advisor. 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. The dana pinion stands forward about 2" more than the 9 1/4, the driveshaft will need to be shortened accordingly. . Approximate rear end widths measured from backing plate to backing plate. I guess 66 will work too, but I don't have any way to verify this, nor any more information for you. Today finding a P/O 9.3 may take some searching and it's helpful to know what to look for. i know in 1956 the pontiac dual range hydra-matic got a different driveshaft yoke. How To Box-In a Differential / Solid Axle Rear-End Housing; . @`AWG^8J>4j|^Vk@oXq7@@/9ep Posts: 8. . The End of an Era. 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. GM quit making the 9.3-inch in 1964. Casting # Year: Body: Size: Notes: 2070051: 1960 - 71: A . The 1967 GTO came in 3 speed Automatic and a 4 Speed manual. Picture is from parts book. note 64 64 axle is same. to change without notice. How to cut your Ford F100 long bed to short bed in a weekend DIY project ~ Two-Part video details cutting frame and bed. var u='http://50chevy.freeservers.com/cgi-bin/sitestats.gif?p='+escape(location.href)+';r='+escape(document.referrer)+';t='+t.getTime(); 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. Mickey Thompson even produced aftermarket Olds and Pontiac magnesium gear cases that were frequently used in dragsters. 2D reg-duty / 4D med-duty 4-pinion. 1940 engine numbers run 2697268 through 3665902. NFTs Simplified > Uncategorized > pontiac rear end width chart. Plywood pieces work well for shims. I have heard that a 1st gen Pontiac Firebird rear is wider, but I am not sure by how much. '67 Chevrolet big car Underneath the back end of an overwhelming majority of gassers was a 1957-'64 Pontiac/Oldsmobile 9.3-inch differential. The following is a general trailer Rear Wheel: Production Years for Series : 1964 - 1967 : Price : $2,437-$3,095: Weight : 3015 lbs | 1367.581 kg: Performance. Rear-end track width measurements of classic American cars including Chevrolet, Ford, and Mopar vehicle rear axle widths. Rear axle widths. What I did is shown below in the photos. 5D med-duty 4-pinion. pontiac rear end decoder year ratio open posi model notes: . 0000004229 00000 n I just measured my 60' Pontiac and it is the same as my 62' Pontiac. used a 3.21 Dana 44 used a standard chevy Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars . I'm not sure of the 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. Is a pontiac center section as olds rear ends of that era? They are also easily modified to suit any chassis. A: Extremely strong! Someone may correct me, but as I recall 1959 was the first year for the "Wide Track" Pontiac. Pontiac Differential Codes Year Model Rear Ratio Tooth Count Std Code Posi Code 1970 Big Pontiac 2.56 41/16 UC VC 1970 Big Pontiac 2.73 41/15 UD VD 1970 Big Pontiac 2.93 41/14 UE VE 1970 Big Pontiac 3.23 42/13 UG VG 1970 Big Pontiac 3.42 41/12 UH VH 1970 Firebird 2.73 41/15 CRX CRY