PY Online Forums - Bringing the Pontiac Hobby Together, Classic TECH- specs, codes, resto issues FORUMS. Interest in vintage drag racing is now approaching a rapid boil. 66-69 axle does not include 64 65 . 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. 1985 to 1989: 7.625 inch ring gear, 26 spline axle. Post: rear end width chart (Topic#173541) greg pharr Contributor Posts: 897 Loc: North Mississippi Reg: 07-09-03. (Dart/Duster) with V8&3/4 axle, Table taken from "How to Build Correct two piece design posi unit, exact for only 67 - 69 Firebird 10 bolt 8.2 rears. Mopar Rear Axle. Jeremy. 1958-1970 Chevy Rear Differential code Identification : Using the charts below, you will be able to learn alot about the rear differential in your classic full size Chevy. Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. June 5, 2022 Posted by: Category: Uncategorized I ordering the axles from Bears Performance who kept thier promise of delivery in about a week. The correct width for 59' & 60' is 63-1/4" I believe. 0000006068 00000 n 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? cars 6" - 8" for large cars, '71 Colt Terms of Service. '67 Chevrolet big car Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale. used a 3.21 Dana 44 used a standard chevy What I did is shown below in the photos. And even though new internals were available from Fabcraft, the carriers were simply becoming too difficult to find. Detroit gear & axle : AB : 3.36 : No : Powerglide : Detroit gear & axle : AC : 4.11 : No : 3 speed, O.D . 4.24 out of 5 stars. July 30, 2004 11:23PM. may be different than pictured. $5 Off Your $100 Mobile App Purchase . Axle Shaft, Rear, 1541H Alloy, 28 Spline, 29.875 in. '68 AMX B. 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Q: Why do Pontiac/Olds 9.3 parts cost more than those for a Ford 9-inch? may be different than pictured. 62" 64-77 Chevelle, 73-76 Torino, 89 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. 3.08. 2D reg-duty / 4D med-duty 4-pinion. BOP, Pontiac, Each. Today finding a P/O 9.3 may take some searching and it's helpful to know what to look for. The new P/O 9.3-inch immediately found its way into hot rods and race cars. Length, GM 8.2 in. For the do-it-yourselfer, Fabcraft offers a full-color manual with excellent tech info on the differential. Buick and Pontiac 10-bolt rear ends used flange-retained axles instead of the C-clip retained axles like those on Chevrolet rears. 1982-1997. If it has the original Borg Warner posi then it is stronger than the Chevy 10 bolt. Identified by casting number & number of cover bolts. 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. Willwood Engineering. Rear-end questions. Its pretty easy to find a good one if you are in an area with a few junkyards. some Chevy's Dana 44 or Dana 60 with leaf springs 6 lug, Gear ratio's '73 Ventura, '73 Mustang, '36 Plymouth, '54-56 Ford Pickup 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. . But the components should at least be grounded in the era. 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 " "" "" ". '70 Duster , '71-77 Maverick A: They came in all fullsize Pontiacs and Oldsmobiles from 1957-64. It has been my experience that the 66 up axle is longer. Information provided by:Joe GarciaThe Resto Rod Shop. [ July 26, 2022 ] Reversing Gears ~ Rescuing One's Own Derelict 1967 Pontiac GTO Builds and Examples [ July 24, 2022 ] . 1956 and back have 10-spline axles. 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. . Building a gasser is a satisfying way to blast down the track, turn some heads, and salute the good old days of racing. 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. Advance Design Trucks seem to be using rear This ratio is 3.08, perfect for cruisin. 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. 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. Is a pontiac center section as olds rear ends of that era? The following list There have been non C-clip rearends found in Chevelle wagons, and some El Caminos through at least 1974. charles coker, 1953 pontiac tech advisor. 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 ; . Below matches. Rear Wheel: Production Years for Series : 1964 - 1967 : Price : $2,437-$3,095: Weight : 3015 lbs | 1367.581 kg: Performance. GU6 - 3.42's Standard manual trans gear ratio. While it still may take an investment in time to locate a good third-member core and housing for your gasser project, these components are still relatively plentiful and quite affordable. However, the 9.3-inch differential was saved from obsolescence by a Texas-based company called Fabcraft Metalworks and its owner, Brad Duerst. Very hard to find set, being as this is version is not being reproduced. Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars . This method will work but the wheels are always trying to roll away and tip over making it very hard to check for clearance and be sure that your measurements are correct . . As a result, many tribute cars and gasser-inspired builds had to stray from correctness. In the '50s and '60s the search for high-performance parts usually meant a trip to the wrecking yard to rob components, engines, out of big, powerful cars of the dayChryslers, Fords, Cadillacs, Olds, Pontiacs, and W-Chevys were all used. These dimensions do not include brake drums and are measured from backing plate to backing plate. Roadkill Customs has evolved from local hot rod shop to online how-to magazine for budget-minded do-it-yourself hot rod builders and enthusiasts. var I=new Image(1,1); I.src=u; Drag Racing 101 ~ Everything You Need to Know! compensate for drums as follows: 4" - 0000005198 00000 n Housings with leaf springs were used under Pontiac and Olds in 1957 and Olds only in 1958-60; Pontiacs had coil . The 8.75-inch had slightly larger, 30-spline axleshafts compared to the P/O's 29-spline shafts; but by 1959, big 31-spline factory shafts were standard, and aftermarket shafts for the 9.3-inch eliminated any supposed shortcomings. For a better experience, please enable JavaScript in your browser before proceeding. HVr0*u9$K;IG]&U&"x\s. 1990 to 1992: 7.625 inch ring gear, 28 spline axle. 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: Ford 9-inch is like the small-block Chevy of rearends. 62" 64-77 Chevelle, 73-76 Torino, 89 Trans Am. i know in 1956 the pontiac dual range hydra-matic got a different driveshaft yoke. There's absolutely no excuse to use the wrong differential in your gasser. 70 2wd 6 lug rear end 12 bolt Possible gear ratio's 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 . Mercury Capri/Bobcat, Monte Carlo, Regal, etc. Drag Racing 101 ~ Everything You Need to Know! 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. Beginning with a new line of U.S.-made gearsets in desirable ratios, Fabcraft rekindled the flickering flame of the 9.3-inch. By 1965 GM replaced the 9.3 with a Spicer design using an 8.875-diameter ring gear that mounted the internals in the axle housing rather than a separate carrier. 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. Cylinders. Picture is from parts book. The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Picture is from parts book. Is a pontiac center section as olds rear ends of that era? '72 Cougar Many aftermarket options exist with all of the appropriate mount points. The Rochester Quadrajet carburetor was featured on the top spec GTO. NFTs Simplified > Uncategorized > pontiac rear end width chart. Pontiac labeled theirs Safe-T-Trac while Oldsmobile called it Anti-Slip. Accurate Differential Identification is the first and most important step in your differential repair, upgrade or overhaul project. '67 Mustang Six , '68 AMX Good luck. "Hy-Tuff" axles are available for it from Moser and Mark Williams in any length (needed to . My 69 gto convert., purchased within the last year has a painful 2.56 rear gear. pontiac rear end decoder year ratio open posi model notes: . @`AWG^8J>4j|^Vk@oXq7@@/9ep All Rights Reserved. '72 Cricket Posts: 8. Contributing information were Bob Welch, J Plywood pieces work well for shims. 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. The P/O rearend and parts were getting harder to find and there were more Ford 9-inchers being made every day. 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. '70's Ford Grenada 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. 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. . "SPECIAL" CARS - 1938 Pontiac Special six. <<3d7f7a4e8421a74f9b85ec848848f3a1>]>> Chrome 10 Bolt Rear End Cover Fits Chevy Pontiac Oldsmobile10 Bolt Differential Compared to the Ford, the P/O parts were more expensive. For some time, only a small handful of ratios were available in new gears. To say I was disappointed by the service provided by this company would be an understatement. 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. "" "" ". . All but a few of the old factory limited-slips had been gathered up and beaten to death. 0000000716 00000 n 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. 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 . If you noticed the axles are missing you would be correct.
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