var u='http://50chevy.freeservers.com/cgi-bin/sitestats.gif?p='+escape(location.href)+';r='+escape(document.referrer)+';t='+t.getTime(); 0000007740 00000 n Rear axle widths. . 1958-1970 Full size Chevy rear differential identification chart. 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. 6 lug rear end 12 bolt Coil spring set up Possible gear ratio's 3.70. Once I had determined the desired width with the loose wheels and tape measure I constructed a wood rear end out of a 2x4. /** * Error Protection API: WP_Paused_Extensions_Storage class * * @package * @since 5.2.0 */ /** * Core class used for storing paused extensions. 0 You bring the gumption. Will only work with bolt in style axles. 40/13. '69 Javelin Six, '39 -48 Chevrolet I'm not sure of the Task Force width ranges at this time. manufactured by Pontiac in United States. 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? 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 . Pontiac Rear End | HQ Automotive Service & Parts 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. I did a quick google search for 65 impala rear end, and 65-66 impala rear end came up a lot. Differential Identification Chart - Roadkill Customs 57" 71-74 V-8 66-69 axle does not include 64 65 . Mopar Rear Axle. Rey Payumo of Kailua, Hawaii found this 1963 Chevrolet Impala packed with junk in a garage in Hayward, California. 2D reg-duty / 4D med-duty 4-pinion. '66-67 Chevrolet Big Car, '72 Charger For a better experience, please enable JavaScript in your browser before proceeding. ZE reg-duty / 4E med-duty 4-pinion. PDF Pontiac Diff Codes - wildaboutcarsonline.com 1990 to 1992: 7.625 inch ring gear, 28 spline axle. However, the 9.3-inch differential was saved from obsolescence by a Texas-based company called Fabcraft Metalworks and its owner, Brad Duerst. For instance, if both the engine and transmission deliver up to 100 ft./lbs. Good luck. (Rear Wheel Drive) +20 offset. 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 : Q: What cars did they originally come in? GM 10-bolt rear ends have four basic ratio choices: 2.73, 3.08, 3.42, and 3.73 . I came up with a cheap simple method to confirm the results of the measurement taken with the loose wheels. 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. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. Needle BUILD IT YOURSELF - PARTS LISTS BUSHINGS TO ADAPT TUBE SIZE . 20 0 obj<>stream What I did is shown below in the photos. Correct two piece design posi unit, exact for only 67 - 69 Firebird 10 bolt 8.2 rears. 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 . 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. Advance Design Trucks seem to be using rear ends with widths ranging from 58"- 62". 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. 0000008567 00000 n No one is making new 31-spline side gears at this time, which is not good. Task Force width ranges at this time. 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. Model. All housings have strong, tapered axle tubes, come in numerous widths, and sport a variety of suspension brackets. lx ?ZXj^|\\(|ka(XKIg#+ Building an example that truly reflects what was around back then takes a certain passion for correctness. 1967 Pontiac GTO - Wheel & Tire Sizes, PCD, Offset and Rims specs | Wheel-Size.com. 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 . %%EOF a Custom Classic Truck" Peterson Publication; June or July 1999, . Newest [ January 23, 2023 ] Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory Roadkill Powersports '70 Duster S10 Rear ends---Info by Ben | T-Bucket Forums If in doubt, consult one of our differential experts at (800)510-0950! 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. The1971-'72 Buick GS/Skylark and Olds Cutlass A-body 8.5 10 bolt did not have C-clip axles. The P/O rearend and parts were getting harder to find and there were more Ford 9-inchers being made every day. This information will change as further information and corrections become available. 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. Why not a Ford? Plywood pieces work well for shims. Compared side-by-side with the Chrysler, it boasted stronger gears and larger bearings. 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. 0000002038 00000 n They're tough, right? . 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 . The two makes used very similar differentials through the mid-'40s and into the '50s. . 71- Newer 2wd trucks use a 5 on 5 lug pattern It has an M-21 four speed and I am ready to upgrade the rear diff. may be different than pictured. I am using a 62' Olds rear in my 61' Bel Air and it is 1" wider that the stock Bel Air rear. To say I was disappointed by the service provided by this company would be an understatement. By designing ring-and-pinion sets to fit the previously less-attractive, but more available, Series II OE carriers, performance ratios could now be utilized without the need for an unfavorable ring-gear spacer. var I=new Image(1,1); I.src=u; The new P/O 9.3-inch immediately found its way into hot rods and race cars. And yet, all too often, a beautiful gasser built today is sitting on top of a Ford 9-inch axle. The most common GM unit for the 1982 to 1992 Camaro is the Saginaw style 10 bolt Chevy differential. rear end width chart | 1958-1965 Full size Chevrolet 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. Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188. 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. Product By Category; Products By SKU/ID; . for highway driving. 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. 1939 engine numbers run 1915447 through 2697267. 41/14. to change without notice. 5E med-duty 4-pinion. )EgZ(WLlT!c!r~;+{( BRnpX{n>S;;5q N`+UHWF*FA6*BKm)JBw This assembly used an 8.2-inch ring gear diameter and 28-spline axles for Camaros, Chevelles, Impalas and even the early Chevy II's. Pontiac labeled theirs Safe-T-Trac while Oldsmobile called it Anti-Slip. Casting # Year: Body: Size: Notes: 2070051: 1960 - 71: A . 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. Diagram. GU5 - 3.23's Optional auto trans gear ratio. May 7, 2009. 3.08. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. Plywood pieces work well for shims. 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. For the do-it-yourselfer, Fabcraft offers a full-color manual with excellent tech info on the differential. jack39rdstr # 169783 04/02/10 02:03 PM. Floor jack permits you to raise and lower wheels to check for clearance. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. 0000000716 00000 n I just measured my 60' Pontiac and it is the same as my 62' Pontiac. Beginning with a new line of U.S.-made gearsets in desirable ratios, Fabcraft rekindled the flickering flame of the 9.3-inch. Under the hood, Pontiac installed a 2.5 . birdfire.com : 67-81 rear end - Free Rear Axle Identification - venturestruckparts.com All but a few of the old factory limited-slips had been gathered up and beaten to death. Many Ford 9-inch parts are made offshore; they have smaller bearings and smaller diameter gears requiring less material. 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 . Richmond Gear calls the 57-64 Olds/Pontiac rear a GM 9.3" Axle (the ring gear is 9.3 inches). PDF Differential ID Chart - Summit Racing Equipment 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. '67 Mustang V-8, '69 Firebird . Rusty but Rare 1976 Chevy K10 Sport Truck Revival! Estimated Lead Time: 5-Days. Length, GM 8.2 in. What Is Rear End Gear Ratio and How Is It Calculated? - Gear '67 Mustang 1957 Pontiac Chieftain 2/4-Door Sedan full range specs If you're building a period-correct car, especially a Gasser, they are undoubtedly the perfect rearend for today. '72 Cricket Find 1967 PONTIAC GTO Differential & Rear-End Components and get Free Shipping on Orders Over $99 at Summit Racing! '66 Falcon, '69 Chevrolet All Rights Reserved. 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. The S10 10bolt 7.5/7.625" rear end is a good choice for the light low to medium horsepower small block cars. The '70 to '81 Camaro rear end is 61 inches. hi don, there is no major difference in the pontiac differential from 1949 to 1956 other than rear brake related parts. Rear End Width Massive Data Base Information - Chevy Tri Five Forum 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. 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. But when it came to rearends, the overwhelming favorites were those our of '57-64 Pontiacs and Oldsmobiles. . 65 Impala rear end | Hot Rod Forum %PDF-1.4 % the wider housing is not 1" closer to 3/4 . AXLE DIFF 4X4 FRONT DIFF PARTS AXLE DIFF REAR END PARTS . 1982-1997. Rear End Widths - Auto Hobby Page 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. Wheel- Size.com The world's largest wheel fitment database. 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. 1977 Pontiac Firebird 2gen Trans Am Coupe full range specs Underneath the back end of an overwhelming majority of gassers was a 1957-'64 Pontiac/Oldsmobile 9.3-inch differential. Posts: 8. '72 Charger Rear-end questions - WebCars Forbes and various locations throughout the Web and Automotive Magazines. 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 . '72-75 Datsun Pickup may be different than pictured. 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. 1967 - 1969 Firebird 10 Bolt Axle Rear End, Posi Unit Ring and Pinion '73 Ventura, '65 Ram American The 8.2" BOP (Buick, Oldsmobile, Pontiac) model is slightly different in that it uses pressed on axle bearings and instead of c-clips . Billet-steel yokes and carrier caps could be added to make the 9.3-inch nearly bomb-proof. How to Build the Right Period-Correct Pontiac/Olds Rearend - MotorTrend It has the 4.75" bolt pattern, and ratios are usually 3.55-3.73, but sometimes you'll find a 3.36. HVMo0WJ~H|V`-e)6`!$)=-~6x@h1|o A Chevy 1/2 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear 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. Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. The 10-bolt was used in all the low performance applications. In head/2 per cylinder. 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 . Pontiac Rear End Gear Codes - Ron's Pontiac Page Ironically the heavy-duty nature of the 9.3 worked against it and played a part in its demise. GM with 7.5 & 7.625 Ring Gears : 1985-1997. The Olds and Pontiac both used the same center section. The Rochester Quadrajet carburetor was featured on the top spec GTO. 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 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. With perhaps less than 10 percent of Pontiac and Oldsmobile fullsize cars possessing the Safe-T-Track and Anti-Spin options, prices for unmolested examples remained high. B-O-P 10-bolt rear axles: A guide to GM's other muscle-era - Hemmings In this 489 case it is 3:91 gears and a 1 7/8 pinion. The high-volume production runs of Ford-9 inch components allow them to be relatively inexpensive.
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