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I came up with a cheap simple method to confirm the results of the measurement taken with the loose wheels. Is a pontiac center section as olds rear ends of that era? 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 * Ring #s GM 40 13 == 67 - 8 - A. 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. This information will change as further information and corrections become available. 0000001170 00000 n All housings have strong, tapered axle tubes, come in numerous widths, and sport a variety of suspension brackets. . The current axle needs to be measured to verify width, because it plays an important part in determining what rim backspacing is necessary. 3.21 to 3.92. '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger Terms of Service. Wheel- Size.com The world's largest wheel fitment database. 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. 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. 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. GU2 - 2.73's Standard auto trans gear ratio. For many years prior, Olds and Pontiac differentials had been a dominant rear axle in drag racing and other motorsports. %%EOF Currie Centurion Housing - Classic notchback looks in a new, high-strength, American-made housing, that features 3-inch diameter axle tubes, and CNC machined face flange, for a flat leak-free . The dana pinion stands forward about 2" more than the 9 1/4, the driveshaft will need to be shortened accordingly. Chrysler sent out the last of its 8.75-inch rearends in the early '70s. It has an M-21 four speed and I am ready to upgrade the rear diff. 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. '69 Dodge Van, '71 Torino If in doubt, consult one of our differential experts at (800)510-0950! Beginning with a new line of U.S.-made gearsets in desirable ratios, Fabcraft rekindled the flickering flame of the 9.3-inch. It is now late November and I still do not have my axles. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass. '70 Duster , '71-77 Maverick '69 Nova Compared side-by-side with the Chrysler, it boasted stronger gears and larger bearings. Rusty but Rare 1976 Chevy K10 Sport Truck Revival! As a result, many tribute cars and gasser-inspired builds had to stray from correctness. Items Suspension Width (Flange to Flange), Ford Mustang II/Pinto & User Info. hi don, there is no major difference in the pontiac differential from 1949 to 1956 other than rear brake related parts. 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. SiteStats_3379(); The non C-clip 8.5" 10 bolt, type "C" rearend was used in some 1969-'72 Pontiac GP and 1970-'72 Monte Carlo. Axle Shaft, Rear, 1541H Alloy, 28 Spline, 29.875 in. Many aftermarket options exist with all of the appropriate mount points. '67 to '70 Mustang/Cougar 8 cyl. Why not a Ford? GU3 - 3.08's V6 gear ratio. pontiac rear end width chart. GU5 - 3.23's Optional auto trans gear ratio. 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. In 1958 a good thing got better when limited-slip differentials were offered. if you dont have a versailles just a regular 9 inch rear end,, that is also 60 ". 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. Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. Year. 0000007740 00000 n 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. 0000002004 00000 n All Rights Reserved. Vehicle. The early Nova's 62-67 would be about 2" shorter. 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. "Hy-Tuff" axles are available for it from Moser and Mark Williams in any length (needed to . note 64 64 axle is same. 70 2wd 6 lug rear end 12 bolt Possible gear ratio's 60" 60's GMC and M&M CUSTOM. How To Box-In a Differential / Solid Axle Rear-End Housing; . 3:08, 3:40, 3:73 L = Low - Zero to Negative Offset, Offset typically RWD (Rear . And yet, all too often, a beautiful gasser built today is sitting on top of a Ford 9-inch axle. The later rear axle requires a wheel with between 5" and 5-1/4" of backspacing, while the earlier axles will only need a wheel with 4-1/2" to 4-3/4" backspacing. Professional technical support is available . 0000002353 00000 n Maverick 5 Lug 8", 49-51 Ford, 57-59 Ford 9", 58" 78-88 Mid 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. Rear Suspension Width (Flange to Flange), Donor Vehicles Front and Rear '69 Cougar, '71 -73 Nova . As the popularity of the Ford 9-inch increased the P/O 9.3 began to fade from the scene. * Pinion #s GM 40 13 == 67 K D. I ordering the axles from Bears Performance who kept thier promise of delivery in about a week. the versailles / granada rear ends from flange to flange is 58.5". 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. So why did the Ford 9-inch become the premier differential of modern day hot rodding? '64 1/2-'65 Mustang The Trophy Track's strengthened bearing hubs even use larger-than-stock bearings, the same ones found on spools. Prices and availability are subject CK 15/35, S10, RV. The new P/O 9.3-inch immediately found its way into hot rods and race cars. 5E med-duty 4-pinion. Casting # Year: Body: Size: Notes: 2070051: 1960 - 71: A . jack39rdstr # 169783 04/02/10 02:03 PM. Originally posted by SUNNYD @Mar 22 2007, 10:23 PM~7534589. My 69 gto convert., purchased within the last year has a painful 2.56 rear gear. The housing came in a couple of weeks but without the axles. 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. You can do this by multiplying by the gear ratio. Six-cylinder truck engine block and head casting numbers. 0000006068 00000 n 1310 yoke, Dana 60 used the heavy duty yoke which takes the larger 1350 yoke. } Cylinders. Mopar Rear Axle. BOP, Pontiac, Each. A: Ford 9-inch is like the small-block Chevy of rearends. Source for tire and wheel application fitment data. compensate for drums as follows: 4" - Stop listening to your street rodder buddy and back away from the 9-inch. '65 Cadillac, '66 Buick Wildcat Several years later, the popularity of this almost deceased differential was rapidly swelling. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. getting back to the differential, why bill didn't cover 1956 i don't know, might have just been a typo or overlooked. 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 ; . GM / Chevy - Differential IdentificationShop by your differential. Length, GM 8.2 in. Jeremy. 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. Approximate rear end widths measured from backing plate to backing plate. No one is making new 31-spline side gears at this time, which is not good. Rear-end track width measurements of classic American cars including Chevrolet, Ford, and Mopar vehicle rear axle widths. If you're building a period-correct car, especially a Gasser, they are undoubtedly the perfect rearend for today. 0000001644 00000 n Needle BUILD IT YOURSELF - PARTS LISTS BUSHINGS TO ADAPT TUBE SIZE . Advance Design Trucks seem to be using rear 1958-1970 Full size Chevy rear differential identification chart. 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 . 0000000991 00000 n The 301 was Pontiac's only V-8 left in production by 1979. They were tough with 9.3-inch ring gears, big pinion shafts, and large-diameter bearings and tough axles. May 7, 2009. 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. 0000000911 00000 n find the 1/2 ton size yoke on a dana 60. Picture is from parts book. '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 Posts: 8. Correct two piece design posi unit, exact for only 67 - 69 Firebird 10 bolt 8.2 rears. For a better experience, please enable JavaScript in your browser before proceeding. 0000002277 00000 n Underneath the back end of an overwhelming majority of gassers was a 1957-'64 Pontiac/Oldsmobile 9.3-inch differential. The following tags will show a 4L80E transmission as an example. I did a quick google search for 65 impala rear end, and 65-66 impala rear end came up a lot. . 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. Ford continued cranking out the 9-inch in vast quantities well into the '80s. 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. It'll help you sniff out the right parts and will walk you through building the differential for your gasser project. 1956 and back have 10-spline axles. Is a pontiac center section as olds rear ends of that era? 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. It is a little better than the Camaro 8.2 10 bolt. candidate to replace the torque tube rear end or just get a better set of gears It has been my experience that the 66 up axle is longer. The now famous Ford 9-inch, with it's unique, straddle mounted pinion, offered great strength for its weight, but even the heavy-duty nodular-iron version suffered from weaknesses that the 9.3-inch did not. Quick question, I'm looking at a '50 Pontiac and was wondering if it had a torque-tube or a driveshaft.