Like most american muscle cars of the Day the Pontiac GTO was a front engined rear wheel driven car. 59" 68-83 Corvette , 67-70 Mustang/Cougar/Fairlane, 60" 55-64 Chevy Needle BUILD IT YOURSELF - PARTS LISTS BUSHINGS TO ADAPT TUBE SIZE . 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 . Jeff Smith: When Chevrolet built the first Camaros in 1967, they were already in production of both 10- and 12-bolt rear-end housings. 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. 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. Picture is from parts book. 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. 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. 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. Approximate rear end widths measured from backing plate to backing plate. "Stovebolt" Specifications. Cylinders. GMC V-6 ends with widths ranging from 58"- 62". Forbes and various locations throughout the Web and Automotive Magazines. Copyright 2023 Welcome To Rodplans! I have heard that a 1st gen Pontiac Firebird rear is wider, but I am not sure by how much. Rear Wheel: Production Years for Series : 1964 - 1967 : Price : $2,437-$3,095: Weight : 3015 lbs | 1367.581 kg: Performance. cars 6" - 8" for large cars, '71 Colt 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 . . If you're building a period-correct car, especially a Gasser, they are undoubtedly the perfect rearend for today. 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. Plywood pieces work well for shims. 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. The '70 to '81 Camaro rear end is 61 inches. 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. <<3d7f7a4e8421a74f9b85ec848848f3a1>]>> Approximate rear end widths measured from backing plate to backing plate. The1971-'72 Buick GS/Skylark and Olds Cutlass A-body 8.5 10 bolt did not have C-clip axles. The Firebird rear end would have been a BOP 8.2 10 bolt. 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. But it's been so long I can't be certain. '69 Firebird Rey Payumo of Kailua, Hawaii found this 1963 Chevrolet Impala packed with junk in a garage in Hayward, California. 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. Beginning with a new line of U.S.-made gearsets in desirable ratios, Fabcraft rekindled the flickering flame of the 9.3-inch. 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 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. User Info. var u='http://50chevy.freeservers.com/cgi-bin/sitestats.gif?p='+escape(location.href)+';r='+escape(document.referrer)+';t='+t.getTime(); It is now late November and I still do not have my axles. The new 9.3-inch provided outstanding durability when subjected to abuse from all classes of race cars, including Top Fuel. HVMo0WJ~H|V`-e)6`!$)=-~6x@h1|o 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? 40/13. Outside of flange to outside 54.25" 66 up are wider. GM / Chevy - Differential IdentificationShop by your differential. 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC Rear Suspension Width (Flange to Flange), Donor Vehicles Front and Rear Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188. '70 Nova 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). 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. 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. I placed the order with Speedway motors in late July for my rear end housing and Currie axles. the versailles / granada rear ends from flange to flange is 58.5". Rear-end track width measurements of classic American cars including Chevrolet, Ford, and Mopar vehicle rear axle widths. i know in 1956 the pontiac dual range hydra-matic got a different driveshaft yoke. 1940 engine numbers run 2697268 through 3665902. '72-75 Datsun Pickup sized GM Car, Malibu/Monte Carlo (82 up Metric Studs), 80 Granada & . 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. While the Ford 9-inch is the perceived benchmark of popular rearends today, in stock form the edge would go to the Pontiac/Olds. With a maximum top speed of 112 mph (180 km/h), a curb weight of 2672 lbs (1212 kgs), the Fiero GT has a naturally-aspirated V 6 cylinder engine, Petrol motor. Accurate Differential Identification is the first and most important step in your differential repair, upgrade or overhaul project. Rear axle flange to flange is supposedly wider than the 68-72 AND the 78-88 GM A and G body cars. Understanding Aluminum Heads and Spark Plugs, OK Go Needing/Getting ~ Its All In The Timing, An Online Magazine for DIY Hot Rod Builders. GU3 - 3.08's V6 gear ratio. charles coker, 1953 pontiac tech advisor. 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. & Conditions, Ford Mustang II/Pinto & Mercury Capri/Bobcat, Monte Carlo, Regal, etc. For some time, only a small handful of ratios were available in new gears. Both of these are semi-floating axles. Contributing information were Bob Welch, J Popular Tools & Look-Ups. 1982 to 1984: 7.5 inch ring gear, 26 spline axle. 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. '71 Comet , '71- 72 Pinto, '39 -48 Chevrolet, '68 GTO Axle Shaft, Rear, 1541H Alloy, 28 Spline, 29.875 in. Mickey Thompson even produced aftermarket Olds and Pontiac magnesium gear cases that were frequently used in dragsters. . The following is a general It has been my experience that the 66 up axle is longer. "Hy-Tuff" axles are available for it from Moser and Mark Williams in any length (needed to . "" "" ". In head/2 per cylinder. with 10 bolt axle. '69 Oldsmobile 88, '72 Chrysler June 5, 2022 Posted by: Category: Uncategorized I ordering the axles from Bears Performance who kept thier promise of delivery in about a week. 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 . Length, GM 8.2 in. 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. find the 1/2 ton size yoke on a dana 60. 57" 71-74 V-8 In this 489 case it is 3:91 gears and a 1 7/8 pinion. Terms of Service. ZE reg-duty / 4E med-duty 4-pinion. Will only work with bolt in style axles. 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 : SKU: CE-GMG7887X. '62 Buick Skylark, '67 Chevrolet Six to change without notice. 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. @`AWG^8J>4j|^Vk@oXq7@@/9ep '71 - 72 Pinto And yet, all too often, a beautiful gasser built today is sitting on top of a Ford 9-inch axle. '70 Dodge, '71-77 Maverick 0000002353 00000 n SiteStats_3379(); Add Width to 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. Your Nova should be the same as 67-69. Its role in drag racing was limited to primarily Stock, Super Stock, and Factory Experimental Fords. The 8.2" BOP (Buick, Oldsmobile, Pontiac) model is slightly different in that it uses pressed on axle bearings and instead of c-clips . Posts: 8. Quick question, I'm looking at a '50 Pontiac and was wondering if it had a torque-tube or a driveshaft. GM quit making the 9.3-inch in 1964. 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. The early Nova's 62-67 would be about 2" shorter. candidate to replace the torque tube rear end or just get a better set of gears JavaScript is disabled. No one is making new 31-spline side gears at this time, which is not good. This reduced weight and eliminated the stock suspension, producing a spacious engine bay that eagerly accepted the chosen powerplant. Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale. but the body with is 1" wider on 66-67. May 7, 2009. "+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. On Gen1, the code is "hit" on the right side of the rear axle (passenger side) with the inscriptions facing the front of . '72-73 Mazda, '28-40 Ford , '57 - 59 Ford For the do-it-yourselfer, Fabcraft offers a full-color manual with excellent tech info on the differential. 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 current axle needs to be measured to verify width, because it plays an important part in determining what rim backspacing is necessary. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. 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. Underneath the back end of an overwhelming majority of gassers was a 1957-'64 Pontiac/Oldsmobile 9.3-inch differential. The correct width for 59' & 60' is 63-1/4" I believe. 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 . may be different than pictured. These smaller volumes and domestic content result in slightly higher prices. 0000001170 00000 n The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Advance Design Trucks seem to be using rear ends with widths ranging from 58"- 62". 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 . This posi has 4 pinion gears, which makes it about 2 times as strong as the Chevy Eaton posi. It's not to the same level as a concours-correct restoration; no judge will deduct points for an incorrect paint code. 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. 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. '67 Mustang Six , '68 AMX ; Home 2; Home 3; Home / / pontiac rear end width chart. note 64 64 axle is same. What is the width of a 1959 pontiac rear end? Is a pontiac center section as olds rear ends of that era? The most common GM unit for the 1982 to 1992 Camaro is the Saginaw style 10 bolt Chevy differential. This information will change as further information and corrections become available. The 10-bolt was used in all the low performance applications. The intake valve size increased to 2.11" and the exhaust valve increased to 1.77"in size from the previous model. Click the above picture to view full size. A: They came in all fullsize Pontiacs and Oldsmobiles from 1957-64. Mavericks 8", All '75-77 6's & 8's It is a little better than the Camaro 8.2 10 bolt. But the components should at least be grounded in the 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. Billet-steel yokes and carrier caps could be added to make the 9.3-inch nearly bomb-proof. while a folding bench was standard for the rear passengers. 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. 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 getting back to the differential, why bill didn't cover 1956 i don't know, might have just been a typo or overlooked. The 1' wider that was stated in paul/chuck 's book may have been miss spoke. 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. Valves. 0000007740 00000 n These dimensions do not include brake drums and are measured from backing plate to backing plate. //-->. hi don, there is no major difference in the pontiac differential from 1949 to 1956 other than rear brake related parts. . '67 Mustang V-8, '69 Firebird Check here to see if your engine is correct for your year truck. Find 1967 PONTIAC GTO Differential & Rear-End Components and get Free Shipping on Orders Over $99 at Summit Racing! 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. ?|-Zce14^nF%67( }fSRaQfqX?|{8{>? VX5EX=b :"-'k>.VbyV^-nWxv-WgUtpo>sMhlI4ZV<4+s>|2k>\x{7M^^x. 1939 engine numbers run 1915447 through 2697267. 1/4 Mile : 13.1 seconds. Many Ford 9-inch parts are made offshore; they have smaller bearings and smaller diameter gears requiring less material. 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. The following tags will show a 4L80E transmission as an example. 0000004229 00000 n 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. Picture is from parts book. What is the width of a 1959 pontiac rear end? Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. stock from flange to flange it is 60 ". If you noticed the axles are missing you would be correct. 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. Shop Full Width; Shop With Sidebar; . The following list '72 Cougar, '74 Pontiac, '49 Plymouth, '61 Chevrolet Impala lx ?ZXj^|\\(|ka(XKIg#+ It'll help you sniff out the right parts and will walk you through building the differential for your gasser project. B. I actually had the axles in less than 4 days! However, the 9.3-inch differential was saved from obsolescence by a Texas-based company called Fabcraft Metalworks and its owner, Brad Duerst. CK 15/35, S10, RV. Car, 67-69 Camaro, 64-67 Chevelle, '67 Lincoln, '69 Dodge The Trophy Track's strengthened bearing hubs even use larger-than-stock bearings, the same ones found on spools. They are also easily modified to suit any chassis. Plywood pieces work well for shims. '72 Cougar Wheel- Size.com The world's largest wheel fitment database. '64 1/2-'65 Mustang 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. startxref Rusty but Rare 1976 Chevy K10 Sport Truck Revival! All correct GM codes and part numbers. 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? Chrysler sent out the last of its 8.75-inch rearends in the early '70s. As a result, many tribute cars and gasser-inspired builds had to stray from correctness. Ironically the heavy-duty nature of the 9.3 worked against it and played a part in its demise. 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 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. AXLE DIFF 4X4 FRONT DIFF PARTS AXLE DIFF REAR END PARTS . As the popularity of the Ford 9-inch increased the P/O 9.3 began to fade from the scene. Lincoln Versailles, Regal with 10 bolt axle, S-10 P.U., 65-67 Nova. Grand Prix. also note on the A4's (auto's) shifter console if the gear selector for 1 is missing. Good third-member cores are also relatively easy to come by, as many are now being saved from recyclers by fellow enthusiasts. well i have 1 from f 150 82 b/plate 2 b/plate it is 58". Under the hood, Pontiac installed a 2.5 . GU6 - 3.42's Standard manual trans gear ratio. 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. 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. You're building a gasser. Please select a rear end that matches your vehicle below.General Motors has a wide range of front and rear ends! 70-81 4wd 6 lug reared Compared side-by-side with the Chrysler, it boasted stronger gears and larger bearings. A: Ford 9-inch is like the small-block Chevy of rearends. Jeremy. So why did the Ford 9-inch become the premier differential of modern day hot rodding? Buick and Pontiac 10-bolt rear ends used flange-retained axles instead of the C-clip retained axles like those on Chevrolet rears.