pontiac rear end width chart

?|-Zce14^nF%67( }fSRaQfqX?|{8{>? VX5EX=b :"-'k>.VbyV^-nWxv-WgUtpo>sMhlI4ZV<4+s>|2k>\x{7M^^x. Is a pontiac center section as olds rear ends of that era? 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. Mickey Thompson even produced aftermarket Olds and Pontiac magnesium gear cases that were frequently used in dragsters. hi don, there is no major difference in the pontiac differential from 1949 to 1956 other than rear brake related parts. Prices and availability are subject . list of rear ends and their dimensions to help narrow the search for a possible Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. . '66-67 Chevrolet Big Car, '72 Charger 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. Part Number: YGA-21289. 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. Task Force width ranges at this time. Year. 0000002353 00000 n Please select a rear end that matches your vehicle below.General Motors has a wide range of front and rear ends! Posts: 8. Correct two piece design posi unit, exact for only 67 - 69 Firebird 10 bolt 8.2 rears. trailer Product By Category; Products By SKU/ID; . Quick question, I'm looking at a '50 Pontiac and was wondering if it had a torque-tube or a driveshaft. Good luck. Plywood pieces work well for shims. Numerous e-mails and phone calls, stories of lost and found axles finally resulted in an e-mail from Speedway motors November 22nd apologizing for not handling this order in a timely manner and that a refund would be sent today. 1957-58 are 29-spline and 1959-1964 are 31 spline. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass. '69 Firebird 4.24 out of 5 stars. 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 . Post: rear end width chart (Topic#173541) greg pharr Contributor Posts: 897 Loc: North Mississippi Reg: 07-09-03. 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. 0000012085 00000 n 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 intake valve size increased to 2.11" and the exhaust valve increased to 1.77"in size from the previous model. HVMo0WJ~H|V`-e)6`!$)=-~6x@h1|o well i have 1 from f 150 82 b/plate 2 b/plate it is 58". Q: Why do Pontiac/Olds 9.3 parts cost more than those for a Ford 9-inch? '72 Charger Model. Estimated Lead Time: 5-Days. The two makes used very similar differentials through the mid-'40s and into the '50s. Copyright 2023 Welcome To Rodplans! Popular Automatic Transmission Identification Chart; Rear-End Widths of Classic American Cars; Follow Us on Flipboard . Fits 41-52 Olds, 50-55 Pontiac : 1310 to 1330: MORE INFO: 3.219 x 1.062: Outside Snap Rings: Converts To: 3.625 x 1.062: Outside Snap Rings : 66-69 axle does not include 64 65 . The dana pinion stands forward about 2" more than the 9 1/4, the driveshaft will need to be shortened accordingly. 1/4 Mile : 13.1 seconds. xref The GM 8.2" axle is available in two configurations: The standard GM 8.2" version features an 8.2" diameter ring gear with 28 spline axle shafts that are held in place using c-clips. 62" 64-77 Chevelle, 73-76 Torino, 89 Trans Am. It has an M-21 four speed and I am ready to upgrade the rear diff. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. 3.08. Ironically the heavy-duty nature of the 9.3 worked against it and played a part in its demise. I ordering the axles from Bears Performance who kept thier promise of delivery in about a week. '70's Ford Grenada & Conditions, Ford Mustang II/Pinto & Mercury Capri/Bobcat, Monte Carlo, Regal, etc. Contributing information were Bob Welch, J some Chevy's Dana 44 or Dana 60 with leaf springs 6 lug, Gear ratio's 0 I believe the width, outside axle flange to outside axle flange, is 64 inches. The high-volume production runs of Ford-9 inch components allow them to be relatively inexpensive. Approximate rear end widths measured from backing plate to backing plate. 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 . Building an example that truly reflects what was around back then takes a certain passion for correctness. Wheel- Size.com The world's largest wheel fitment database. Cylinders. '67 to '70 Mustang/Cougar 8 cyl. 3:08, 3:40, 3:73 |;|tB70t:`!t;?Yp?o^16Y*Ra(k ;6te64^bv n+;:G57@hbM_5 N Interest in vintage drag racing is now approaching a rapid boil. 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. I'm not sure of the Task Force width ranges at this time. 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. 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. '72-73 Torino, STOCK CENTER TO CENTER SPRING PERCH DISTANCE, '69 Chevrolet A turbocharger was added to the 301 to give the 1980 Trans Am an injection of performance. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. 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 But when it came to rearends, the overwhelming favorites were those our of '57-64 Pontiacs and Oldsmobiles. '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger '69 Oldsmobile 88, '72 Chrysler Very hard to find set, being as this is version is not being reproduced. 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. 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 . I have heard that a 1st gen Pontiac Firebird rear is wider, but I am not sure by how much. 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC All correct GM codes and part numbers. 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. 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. The 10-bolt was used in all the low performance applications. Prices and availability are subject J.T. The Olds and Pontiac both used the same center section. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. 40/13. A solid front axle was found under the front of nearly every gasser. SiteStats_3379(); Pontiacs had 1.75-inch-wide drums in 1957-58 while Olds used 2-inch from 1959-on, both used 2-inch brakes. Last Update: Feb. 24, 2023, 5:12 a.m. pontiac rear end decoder year ratio open posi model notes: . 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. Terms of Service. Diagram. Many aftermarket options exist with all of the appropriate mount points. Quality and service was excellent. while a folding bench was standard for the rear passengers. Many Ford 9-inch parts are made offshore; they have smaller bearings and smaller diameter gears requiring less material. Here you can see the three white paint splotches identifying the pinion size and the gears. '67 Chevrolet big car A: Extremely strong! Suspension Width (Flange to Flange), Ford Mustang II/Pinto & 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. There's absolutely no excuse to use the wrong differential in your gasser. . The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. B-O-P axles also have identifying grooves traveling along each side of . "+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. '72-73 Mazda, '28-40 Ford , '57 - 59 Ford AXLE DIFF 4X4 FRONT DIFF PARTS AXLE DIFF REAR END PARTS . Registered: 16 years ago. 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. '55 -57 Chevrolet, 68-69 Fair lane 6 or 8 It is now late November and I still do not have my axles. The other drawback is that you can only check for clearance at the height the jack stands are set to. If you noticed the axles are missing you would be correct. Professional technical support is available . The renewed interest in the P/O 9.3-inch generated high demand for any limited-slip units that were left. 1982 to 1984: 7.5 inch ring gear, 26 spline axle. 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. Discussion in 'Traditional Hot Rods' started by Ruiner, Sep 4, 2006. Mopar Rear Axle. Chevy 10 Bolt Rear End Widths. 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. . A: They came in all fullsize Pontiacs and Oldsmobiles from 1957-64. charles coker, 1953 pontiac tech advisor. July 30, 2004 11:23PM. Willwood Engineering. I'm running the wider blazer rear end . Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars . The 1967 GTO came in 3 speed Automatic and a 4 Speed manual. Floor jack permits you to raise and lower wheels to check for clearance. 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. Casting # Year: Body: Size: Notes: 2070051: 1960 - 71: A . In searching the web I found the following links that have a massive of information on rear end widths and wanted to share. May 7, 2009. Buick/Olds/Pontiac axles are typically retained with bearings. I've heard 'prolly torque-tube' from most that I've asked My friend's stock '41 Pontiac is open drive, so I would imagine that the '50 is as well. %PDF-1.4 % Source for tire and wheel application fitment data. The correct width for 59' & 60' is 63-1/4" I believe. Another factor that made these rearends popular was the wide selection of factory gear ratios available, 2.56:1 through 4.30:1 while even lower drag racing cogs were available from aftermarket suppliers. JavaScript is disabled. 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. Privacy Policy. 1310 yoke, Dana 60 used the heavy duty yoke which takes the larger 1350 yoke. The End of an Era. I placed the order with Speedway motors in late July for my rear end housing and Currie axles. Rear End Widths - - Back - - Home > Specs > Rear End Widths : Representative for comparison purposes only. All but a few of the old factory limited-slips had been gathered up and beaten to death. 70 2wd 6 lug rear end 12 bolt Possible gear ratio's 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. '74 Valiant, '57 Ford pontiac rear end width chart. candidate to replace the torque tube rear end or just get a better set of gears GM quit making the 9.3-inch in 1964. Ford. var t=new Date(); The 55-57 Chevy car rear-end is almost a bolt in, the perches need to be relocated to the top of the housing though. '71 Comet In this 489 case it is 3:91 gears and a 1 7/8 pinion. 0000000716 00000 n the versailles / granada rear ends from flange to flange is 58.5". "SPECIAL" CARS - 1938 Pontiac Special six. Building a gasser is a satisfying way to blast down the track, turn some heads, and salute the good old days of racing. Additionally, it can be a relatively affordable way to enjoy a day at the track. Richmond Gear calls the 57-64 Olds/Pontiac rear a GM 9.3" Axle (the ring gear is 9.3 inches). Items GU5 - 3.23's Optional auto trans gear ratio. 0000005198 00000 n Rear-end questions. 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. 60" 60's GMC and 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 ; . 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. Rey Payumo of Kailua, Hawaii found this 1963 Chevrolet Impala packed with junk in a garage in Hayward, California. 0000001170 00000 n 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. * Pinion #s GM 40 13 == 67 K D. Click the above picture to view full size. For some time, only a small handful of ratios were available in new gears. GU2 - 2.73's Standard auto trans gear ratio. 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.

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