Beginning with a new line of U.S.-made gearsets in desirable ratios, Fabcraft rekindled the flickering flame of the 9.3-inch. "Hy-Tuff" axles are available for it from Moser and Mark Williams in any length (needed to . Picture is from parts book. Needle BUILD IT YOURSELF - PARTS LISTS BUSHINGS TO ADAPT TUBE SIZE . 8.5 firebird rearend width? | Team Camaro Tech I'm not sure of the Task Force width ranges at this time. 1957-58 are 29-spline and 1959-1964 are 31 spline. Forbes and various locations throughout the Web and Automotive Magazines. S10 Rear ends---Info by Ben | T-Bucket Forums B-O-P axles also have identifying grooves traveling along each side of . Discussion in 'Traditional Hot Rods' started by Ruiner, Sep 4, 2006. Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. 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. The new P/O 9.3-inch immediately found its way into hot rods and race cars. 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 Correct two piece design posi unit, exact for only 67 - 69 Firebird 10 bolt 8.2 rears. 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. 0000005198 00000 n if you dont have a versailles just a regular 9 inch rear end,, that is also 60 ". . I would like most people place the wheels and tires under the car and use a tape measure to determine the distance from wheel flange to wheel flange. 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. Estimated Lead Time: 5-Days. The two makes used very similar differentials through the mid-'40s and into the '50s. Chevy Rear End Compatibility Chart (Expert Explained) 0000008567 00000 n 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. My 69 gto convert., purchased within the last year has a painful 2.56 rear gear. 18 21 Dec 20, 2007. $5 Off Your $100 Mobile App Purchase . 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 . All correct GM codes and part numbers. 40/13. cars 6" - 8" for large cars, '71 Colt 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 . . In this 489 case it is 3:91 gears and a 1 7/8 pinion. Prices and availability are subject Rear end gear ratio???? - LS1LT1 Forum What is the width of a 1959 pontiac rear end? NFTs Simplified > Uncategorized > pontiac rear end width chart. } GM quit making the 9.3-inch in 1964. '70 Duster , '71-77 Maverick The 10-bolt was used in all the low performance applications. Rear-end questions. 70-81 4wd 6 lug reared 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. 1956 and back have 10-spline axles. Terms of Service. Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. To say I was disappointed by the service provided by this company would be an understatement. How to cut your Ford F100 long bed to short bed in a weekend DIY project ~ Two-Part video details cutting frame and bed. Picture is from parts book. Source for tire and wheel application fitment data. Jeremy. 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 " "" "" ". Someone may correct me, but as I recall 1959 was the first year for the "Wide Track" Pontiac. 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 ; . 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 Box-In a Differential / Solid Axle Rear-End Housing, How To Install aLimited Slip/Posi Unit in a GM 10 Bolt 8.5 Rear-end, How To Install Ring and Pinion Gears in a Ford 8.8 Rear-End, How To Rebuild a GM 10 Bolt Chevy 8.5 Rear End, How To Select Proper Rear-End / Differential Gear Ratio, Popular Automatic Transmission Dimensions, Popular Automatic Transmission Identification Chart, Engine / Transmission / Chassis Donor Search, Project Cars and Part Donor Cars For Sale. '67 Chevrolet Six Outside of flange to outside 54.25" 66 up are wider. 0 function SiteStats_3379(){ Is a pontiac center section as olds rear ends of that era? Good luck. Building a gasser is a satisfying way to blast down the track, turn some heads, and salute the good old days of racing. Items i know in 1956 the pontiac dual range hydra-matic got a different driveshaft yoke. jack39rdstr # 169783 04/02/10 02:03 PM. Trans Am. It'll help you sniff out the right parts and will walk you through building the differential for your gasser project. 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. Part Number: YGA-21289. GM 8.2" and 8.2" BOP Axle Parts, Gears, and Upgrades - Drivetrain Shop Advance Design Trucks seem to be using rear 1985 to 1989: 7.625 inch ring gear, 26 spline axle. 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 . Post: rear end width chart (Topic#173541) greg pharr Contributor Posts: 897 Loc: North Mississippi Reg: 07-09-03. '73 Ventura, '65 Ram American '67 Chevrolet big car We provide how-to and technical articles, vehicle and build features and examples, plus calculators and lookups that will help you get your ride from dream to driver. "SPECIAL" CARS - 1938 Pontiac Special six. Rusty but Rare 1976 Chevy K10 Sport Truck Revival! Engine Numbers. ; Home 2; Home 3; Home / / pontiac rear end width chart. 64 Rear End Width - Bringing the Pontiac Hobby Together 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. 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. Find your GMC/Chevy vehicle in the chart below and click on the illustration for a larger view. 1969. They are also easily modified to suit any chassis. Pontiac Rear End Gear Codes - Ron's Pontiac Page 0000002277 00000 n The 1' wider that was stated in paul/chuck 's book may have been miss spoke. Pontiac labeled theirs Safe-T-Trac while Oldsmobile called it Anti-Slip. <<3d7f7a4e8421a74f9b85ec848848f3a1>]>> GM G-Body Housing and Axle Package - Currie Enterprises I believe the width, outside axle flange to outside axle flange, is 64 inches. Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale. '72 Dart The following tags will show a 4L80E transmission as an example. endstream endobj 29 0 obj<>stream Rear End Width Massive Data Base Information - Chevy Tri Five Forum 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. '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger 18 0 obj<> endobj Will only work with bolt in style axles. 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. of extensive information was contributed by R. Welch: Original Vehicles Gallery: '66-'70 B-Body 8.75 Rear Differential Identifiers & Markings It's not to the same level as a concours-correct restoration; no judge will deduct points for an incorrect paint code. Yes the axles were special in that I wanted to use a 28 spline center section already had rather than buy a new 3rd member to suit the 31 spline axles that Speedway stocked. 0000000716 00000 n Newest [ January 23, 2023 ] Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory Roadkill Powersports Information provided by:Joe GarciaThe Resto Rod Shop. Compared side-by-side with the Chrysler, it boasted stronger gears and larger bearings. "+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. Grand Prix. 1967 Pontiac GTO - Wheel & Tire Sizes, PCD, Offset and Rims specs | Wheel-Size.com. Drag Racing 101 ~ Everything You Need to Know! Learn more. It may not display this or other websites correctly. 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. This reduced weight and eliminated the stock suspension, producing a spacious engine bay that eagerly accepted the chosen powerplant. '71 Comet There's absolutely no excuse to use the wrong differential in your gasser. Its role in drag racing was limited to primarily Stock, Super Stock, and Factory Experimental Fords. Aftermarket support followed in the form of beefy axles, gears, spools, couplers, and Mickey Thompson's aluminum and magnesium centersections. You're building a gasser. 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. Rear Wheel: Production Years for Series : 1964 - 1967 : Price : $2,437-$3,095: Weight : 3015 lbs | 1367.581 kg: Performance. 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. [ July 26, 2022 ] Reversing Gears ~ Rescuing One's Own Derelict 1967 Pontiac GTO Builds and Examples [ July 24, 2022 ] . Identified by casting number & number of cover bolts. used a 3.21 Dana 44 used a standard chevy No one is making new 31-spline side gears at this time, which is not good. '72-75 Datsun Pickup /** * Error Protection API: WP_Paused_Extensions_Storage class * * @package * @since 5.2.0 */ /** * Core class used for storing paused extensions. '66-67 Chevrolet Big Car, '72 Charger 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). '72 Cougar 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. %%EOF 5E med-duty 4-pinion. "Stovebolt" Specifications. However, the 9.3-inch differential was saved from obsolescence by a Texas-based company called Fabcraft Metalworks and its owner, Brad Duerst. I guess 66 will work too, but I don't have any way to verify this, nor any more information for you. 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. with 10 bolt axle. Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. 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. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. $1,825.00. All but a few of the old factory limited-slips had been gathered up and beaten to death. Prices and availability are subject 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. Shop Full Width; Shop With Sidebar; . The housing came in a couple of weeks but without the axles. ends with widths ranging from 58"- 62". Hot Rod Blueprints, Drawings and Tech Tips For The Hot Rod Enthusiast!. find the 1/2 ton size yoke on a dana 60. Rear end interchangability 1965 to 1967 IMPALA '70 Nova Check our the Chevy rear end gear ratio chart above to help you identify the correct gear to use. RWD (rear-wheel drive), automatic 4-speed gearbox. Originally posted by SUNNYD @Mar 22 2007, 10:23 PM~7534589. Third Generation (1982 - 1992) Technical Data It has been my experience that the 66 up axle is longer. 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. Willwood Engineering. 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 Technical - Pontiac/Olds Rearend TECHpost it here Copyright 2023 Welcome To Rodplans! I'm not sure of the 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. 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. Compared to the Ford, the P/O parts were more expensive. Rim Width Measure from the inside of the outer lip at the bead seating point to the inner lip. According to published lists, the 55-64 Chevrolet rear end width is 60" from wheel mount surface to wheel mount surface. Camaro Differentials and Driveline - CamaroTech.com A turbocharger was added to the 301 to give the 1980 Trans Am an injection of performance. 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. 0000000016 00000 n 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 . Year. Rear End Widths - - Back - - Home > Specs > Rear End Widths : Representative for comparison purposes only. '62 Buick Skylark, '67 Chevrolet Six The high-volume production runs of Ford-9 inch components allow them to be relatively inexpensive. I'm running the wider blazer rear end . You bring the gumption. '72 Cricket for highway driving. 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. AXLE DIFF 4X4 FRONT DIFF PARTS AXLE DIFF REAR END PARTS . 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. 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. 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. 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.