'70 Nova '69 Firebird ; Home 2; Home 3; Home / / pontiac rear end width chart. The Firebird rear end would have been a BOP 8.2 10 bolt. 0000001170 00000 n GU6 - 3.42's Standard manual trans gear ratio. It may not display this or other websites correctly. 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. Factory Width. GM quit making the 9.3-inch in 1964. I'm sorry if I repeated what I've learned to accept as fact, but there are other reasons besides what I've read that have convinced me that '64/'65 housings are narrower than the '66/'67. This number may be on the top, bottom, or either side of the axle shaft. Advance Design Trucks seem to be using rear 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. 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. Thanks to the efforts of the Fabcraft Metalworks crew all the parts necessary to rebuild one are available along with a selection of improved components and special tools to make working on them easier. Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. GMC V-6 The final drive ratio is identified with 2 or 3 letters codes. Many aftermarket options exist with all of the appropriate mount points. of extensive information was contributed by R. Welch: Original Vehicles some Chevy's Dana 44 or Dana 60 with leaf springs 6 lug, Gear ratio's Originally posted by SUNNYD @Mar 22 2007, 10:23 PM~7534589. candidate to replace the torque tube rear end or just get a better set of gears 0000008567 00000 n Ford. I am using a 62' Olds rear in my 61' Bel Air and it is 1" wider that the stock Bel Air rear. For some time, only a small handful of ratios were available in new gears. 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. 0000000016 00000 n They're tough, right? * Pinion #s GM 40 13 == 67 K D. It has been my experience that the 66 up axle is longer. Forbes and various locations throughout the Web and Automotive Magazines. Floor jack permits you to raise and lower wheels to check for clearance. 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. 1957-58 are 29-spline and 1959-1964 are 31 spline. Car, 67-69 Camaro, 64-67 Chevelle, if you dont have a versailles just a regular 9 inch rear end,, that is also 60 ". 0000003369 00000 n Items Rear End Widths - - Back - - Home > Specs > Rear End Widths : Representative for comparison purposes only. '73 Ventura, '65 Ram American "SPECIAL" CARS - 1938 Pontiac Special six. 100 x 4.12. 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. 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. 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. NFTs Simplified > Uncategorized > pontiac rear end width chart. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. GU3 - 3.08's V6 gear ratio. 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 Plywood pieces work well for shims. Plywood pieces work well for shims. The total width of the Chevy II rear end is 58 inches and the total width of a '67 to '69 Camaro rear end is 60 inches. getting back to the differential, why bill didn't cover 1956 i don't know, might have just been a typo or overlooked. I'm running the wider blazer rear end . Find your GMC/Chevy vehicle in the chart below and click on the illustration for a larger view. This posi has 4 pinion gears, which makes it about 2 times as strong as the Chevy Eaton posi. note 64 64 axle is same. (Dart/Duster) with V8&3/4 axle, Table taken from "How to Build M&M CUSTOM. 18 0 obj<> endobj Model. 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. GM 7.75" (Australian - Some 3rd Gen Camaro/Firebirds) GM 8.0" - Rear - Late Model Midsize Truck Ring Gear Diameter: 7.75" Ring Gear Diameter: 8.0" Pinion Diameter / Spline: 27 Pinion Diameter / Spline: 1.781" / 27 Ring Gear Bolts: (8) Ring Gear Bolts: (10) 7/16"x20 LH Cover Bolts: 9 Cover Bolts: 10 Carrier Breaks: 2.77 / 3.27 Carrier Breaks: None 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. xref These dimensions do not include brake drums and are measured from backing plate to backing plate. Like most american muscle cars of the Day the Pontiac GTO was a front engined rear wheel driven car. 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. 71- Newer 2wd trucks use a 5 on 5 lug pattern Understanding Aluminum Heads and Spark Plugs, OK Go Needing/Getting ~ Its All In The Timing, An Online Magazine for DIY Hot Rod Builders. Mercury Capri/Bobcat, Monte Carlo, Regal, etc. may be different than pictured. cars 6" - 8" for large cars, '71 Colt Vehicle. I placed the order with Speedway motors in late July for my rear end housing and Currie axles. '67 Chevrolet big car 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 Estimated Lead Time: 5-Days. The following is a general Rear axle widths. pontiac rear end width chart. A: Extremely strong! xb```"~> !%1#XY} P A1@G7L/^nkX,i{j^vL@l ` n '66 Falcon, '69 Chevrolet The new P/O 9.3-inch immediately found its way into hot rods and race cars. The End of an Era. And yet, all too often, a beautiful gasser built today is sitting on top of a Ford 9-inch axle. ZE reg-duty / 4E med-duty 4-pinion. Add Width to Dec 26, 2008. JavaScript is disabled. '74 Valiant, '57 Ford Its role in drag racing was limited to primarily Stock, Super Stock, and Factory Experimental Fords. This information will change as further information and corrections become available. Q: Why do Pontiac/Olds 9.3 parts cost more than those for a Ford 9-inch? Check our the Chevy rear end gear ratio chart above to help you identify the correct gear to use. The1971-'72 Buick GS/Skylark and Olds Cutlass A-body 8.5 10 bolt did not have C-clip axles. The '70 to '81 Camaro rear end is 61 inches. '62 Buick Skylark, '67 Chevrolet Six 1958-1970 Full size Chevy rear differential identification chart. 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC $5 Off Your $100 Mobile App Purchase . @`AWG^8J>4j|^Vk@oXq7@@/9ep also note on the A4's (auto's) shifter console if the gear selector for 1 is missing. stock from flange to flange it is 60 ". GM 10-bolt rear ends have four basic ratio choices: 2.73, 3.08, 3.42, and 3.73 . "" "" ". The Trophy Track's strengthened bearing hubs even use larger-than-stock bearings, the same ones found on spools. It is now late November and I still do not have my axles. The 1' wider that was stated in paul/chuck 's book may have been miss spoke. There's absolutely no excuse to use the wrong differential in your gasser. 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. '69 Javelin Six, '39 -48 Chevrolet 5D med-duty 4-pinion. 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 . It has the 4.75" bolt pattern, and ratios are usually 3.55-3.73, but sometimes you'll find a 3.36. 66-69 axle does not include 64 65 . list of rear ends and their dimensions to help narrow the search for a possible well i have 1 from f 150 82 b/plate 2 b/plate it is 58". Aftermarket support followed in the form of beefy axles, gears, spools, couplers, and Mickey Thompson's aluminum and magnesium centersections. 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. . The most common GM unit for the 1982 to 1992 Camaro is the Saginaw style 10 bolt Chevy differential. Hot Rod Blueprints, Drawings and Tech Tips For The Hot Rod Enthusiast!. While the Ford 9-inch is the perceived benchmark of popular rearends today, in stock form the edge would go to the Pontiac/Olds. What is the width of a 1959 pontiac rear end? Rear-end track width measurements of classic American cars including Chevrolet, Ford, and Mopar vehicle rear axle widths. Jeff Smith: When Chevrolet built the first Camaros in 1967, they were already in production of both 10- and 12-bolt rear-end housings. "+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. Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars . Wheel Stud *. '67 Chevrolet Six If in doubt, consult one of our differential experts at (800)510-0950! And even though new internals were available from Fabcraft, the carriers were simply becoming too difficult to find. Product By Category; Products By SKU/ID; . GM / Chevy - Differential IdentificationShop by your differential. with 10 bolt axle, "A" body 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. 0000000911 00000 n '69 Nova . Cylinders. The Olds and Pontiac both used the same center section. 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. Maverick 5 Lug 8", 49-51 Ford, 57-59 Ford 9", 58" 78-88 Mid Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. '70 Duster Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188. 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. Engine Numbers. Under the hood, Pontiac installed a 2.5 . 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. 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? All Rights Reserved. '72 Cricket The other drawback is that you can only check for clearance at the height the jack stands are set to. It has an M-21 four speed and I am ready to upgrade the rear diff. & Conditions, Ford Mustang II/Pinto & Mercury Capri/Bobcat, Monte Carlo, Regal, etc. A solid front axle was found under the front of nearly every gasser. 0000009416 00000 n I have a source for the axleshafts and the difference in the shafts shows this to be true, BUT doesn't show the diff center . '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger Actual wheel track could be as much as 6" to 8"depending on drum size: '67 to '70 Mustang/Cougar 6 cyl. Task Force width ranges at this time. In searching the web I found the following links that have a massive of information on rear end widths and wanted to share. '71 Comet I'm not sure of the Task Force width ranges at this time. (Rear Wheel Drive) +20 offset. for highway driving. Terms of Service. 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. The two makes used very similar differentials through the mid-'40s and into the '50s. Other changes were made to the limited-slip carrier, but strength was not adversely affected. |;|tB70t:`!t;?Yp?o^16Y*Ra(k ;6te64^bv n+;:G57@hbM_5 N )EgZ(WLlT!c!r~;+{( BRnpX{n>S;;5q N`+UHWF*FA6*BKm)JBw Many Ford 9-inch parts are made offshore; they have smaller bearings and smaller diameter gears requiring less material. 71-76 Full Size Cars " %%EOF 59" 68-83 Corvette , 67-70 Mustang/Cougar/Fairlane, 60" 55-64 Chevy . Several features are common to most gassers. It has been my experience that the 66 up axle is longer. The S10 10bolt 7.5/7.625" rear end is a good choice for the light low to medium horsepower small block cars. Stop listening to your street rodder buddy and back away from the 9-inch. (rear-wheel drive), automatic 3-speed gearbox . I believe the width, outside axle flange to outside axle flange, is 64 inches. i know in 1956 the pontiac dual range hydra-matic got a different driveshaft yoke. Rey Payumo of Kailua, Hawaii found this 1963 Chevrolet Impala packed with junk in a garage in Hayward, California. There is also a yellow stamp 10 22 which is the . Pontiacs had 1.75-inch-wide drums in 1957-58 while Olds used 2-inch from 1959-on, both used 2-inch brakes. 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. Approximate rear end widths measured from backing plate to backing plate. Rusty but Rare 1976 Chevy K10 Sport Truck Revival! 0000002277 00000 n The T/A 6.6 was available for most of the model year, but once the supply of stockpiled 400s was exhausted, it signaled the end of the big Pontiac V-8. . Outside Width: Year: Model: 56.50: 1969-1977: Maverick 8" 56.50: 1990-1992: Ford Ranger 8.8" 56.75: 1995-2003: Ford Explorer 8.8" Narrowed w/2 short side axles: 57.00: 1974-1978: Mustang II 8" 57.25: 1957-1959: Ford, Ranchero . Look at the RPO codes. ends with widths ranging from 58"- 62". 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. They were tough with 9.3-inch ring gears, big pinion shafts, and large-diameter bearings and tough axles. Correct two piece design posi unit, exact for only 67 - 69 Firebird 10 bolt 8.2 rears. '69 Oldsmobile 88, '72 Chrysler 1990 to 1992: 7.625 inch ring gear, 28 spline axle. Last Update: Feb. 24, 2023, 5:12 a.m. They were robust, drop-out-style third members that offered the strength and serviceability racers required. If you're building a period-correct car, especially a Gasser, they are undoubtedly the perfect rearend for today. So why did the Ford 9-inch become the premier differential of modern day hot rodding? 5E med-duty 4-pinion. Ford Mustang Complete 9" Rear End Packages, GM G-body 78-87 Complete 9" Rear End Package, GM Chevy S10 82-04 Complete 9" Rear End Package, GM Tri 5 55-57 Chevy Complete 9" Rear End Package, GM X-Body Nova Complete Rear End Packages, Axle Bearings, Retainer Plates, & Wheel Studs, Bearings, Differential Parts, Seals, & Hardware, Master Cylinders, Caliper Kits, and Parts. Chrysler sent out the last of its 8.75-inch rearends in the early '70s. . . "Stovebolt" Specifications. 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. There have been non C-clip rearends found in Chevelle wagons, and some El Caminos through at least 1974. Casting # Year: Body: Size: Notes: 2070051: 1960 - 71: A . The non C-clip 8.5" 10 bolt, type "C" rearend was used in some 1969-'72 Pontiac GP and 1970-'72 Monte Carlo. . 0000002038 00000 n Q: What cars did they originally come in? 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. '73 Ventura, '73 Mustang, '36 Plymouth, '54-56 Ford Pickup 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. Registered: 16 years ago. Lincoln Versailles, Regal with 10 bolt axle, S-10 P.U., 65-67 Nova. Chevy 10 Bolt Rear End Widths. 0000004229 00000 n gasoline (petrol) engine with displacement: 5690 cm3 / 347.2 cui, advertised power: 216 kW / 290 hp / 294 PS ( SAE ), torque: 509 Nm / 375 lb-ft, more data: 1957 Pontiac Chieftain Sedan Tri-Power Hydra-Matic (aut. You bring the gumption. 0000000991 00000 n ). 5" for small cars 5" - 6" for intermediate You must log in or register to reply here. HVMo0WJ~H|V`-e)6`!$)=-~6x@h1|o 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. 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. The new 9.3-inch provided outstanding durability when subjected to abuse from all classes of race cars, including Top Fuel. 0000002353 00000 n '66-67 Chevrolet Big Car, '72 Charger 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. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. <<3d7f7a4e8421a74f9b85ec848848f3a1>]>> 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. It's not to the same level as a concours-correct restoration; no judge will deduct points for an incorrect paint code. 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 . 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Contributing information were Bob Welch, J Approximate rear end widths measured from backing My '64's measure 54.25". Quick question, I'm looking at a '50 Pontiac and was wondering if it had a torque-tube or a driveshaft. '67 to '70 Mustang/Cougar 8 cyl. 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 ; . In this 489 case it is 3:91 gears and a 1 7/8 pinion. Trans Am. /** * Error Protection API: WP_Paused_Extensions_Storage class * * @package * @since 5.2.0 */ /** * Core class used for storing paused extensions. PY Online Forums - Bringing the Pontiac Hobby Together, Classic TECH- specs, codes, resto issues FORUMS. pontiac rear end width chart . 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 . Accurate Differential Identification is the first and most important step in your differential repair, upgrade or overhaul project. Chrome 10 Bolt Rear End Cover Fits Chevy Pontiac Oldsmobile10 Bolt Differential You can do this by multiplying by the gear ratio. My rear is the bolt in axles. All housings have strong, tapered axle tubes, come in numerous widths, and sport a variety of suspension brackets. 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. to change without notice. 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. . SiteStats_3379(); I ordering the axles from Bears Performance who kept thier promise of delivery in about a week. Year. 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. Its narrow front end with a plastic, wrapped-around bumper featured fog lights as an option. Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale. a Custom Classic Truck" Peterson Publication; June or July 1999,