Check here to see if your engine is correct for your year truck. What is the width of a 1959 pontiac rear end? The 10-bolt was used in all the low performance applications. 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 ; . 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC 0000000991 00000 n 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 . 1990 to 1992: 7.625 inch ring gear, 28 spline axle. . 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. The 8.2" BOP (Buick, Oldsmobile, Pontiac) model is slightly different in that it uses pressed on axle bearings and instead of c-clips . jack39rdstr # 169783 04/02/10 02:03 PM. If you noticed the axles are missing you would be correct. M&M CUSTOM. 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. Hot Rod Blueprints, Drawings and Tech Tips For The Hot Rod Enthusiast!. Understanding Aluminum Heads and Spark Plugs, OK Go Needing/Getting ~ Its All In The Timing, An Online Magazine for DIY Hot Rod Builders. 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. Building a gasser is a satisfying way to blast down the track, turn some heads, and salute the good old days of racing. Check our the Chevy rear end gear ratio chart above to help you identify the correct gear to use. 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 Apply Rust Encapsulator Plus to a Rusty Rear End, How To Box-In a Differential / Solid Axle Rear-End Housing, How To Select Proper Rear-End / Differential Gear Ratio, Wheelbase Measurements for Popular Classic Cars, 1955 Chevrolet 3100 Step Side Pickup Truck Build, How To Cut Your Long Bed to a Short Bed in a Weekend, Engine / Transmission / Chassis Donor Search, Project Cars and Part Donor Cars For Sale. Buick/Olds/Pontiac axles are typically retained with bearings. . cars 6" - 8" for large cars, '71 Colt 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. 5E med-duty 4-pinion. However, the 9.3-inch differential was saved from obsolescence by a Texas-based company called Fabcraft Metalworks and its owner, Brad Duerst. Housings with leaf springs were used under Pontiac and Olds in 1957 and Olds only in 1958-60; Pontiacs had coil springs in 1958-60 and from 1961-64 both had coils. Its role in drag racing was limited to primarily Stock, Super Stock, and Factory Experimental Fords. 3.21 to 3.92. Rear End Widths - - Back - - Home > Specs > Rear End Widths : Representative for comparison purposes only. Dick this in no way reflects upon your statement but you make an excelent point when you stated " I read enough times that". function SiteStats_3379(){ Task Force width ranges at this time. Dec 26, 2008. Add Width to endstream endobj 29 0 obj<>stream 0000015097 00000 n Diagram. 0000006915 00000 n 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. 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. 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. The 1965 Pontiac Tempest LeMans measures 74.40 inches in width, The 1965 Pontiac Tempest LeMans measures 206.20 inches in length, and has a wheelbase of 115.00 inches. @`AWG^8J>4j|^Vk@oXq7@@/9ep the wider housing is not 1" closer to 3/4 . Last Update: Feb. 24, 2023, 5:12 a.m. 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 Valves. Dec 20, 2007. '71 Comet Like most american muscle cars of the Day the Pontiac GTO was a front engined rear wheel driven car. trailer The S10 10bolt 7.5/7.625" rear end is a good choice for the light low to medium horsepower small block cars. %twE_( H@v7H f)p* 0KO|O n>+ Post: rear end width chart (Topic#173541) greg pharr Contributor Posts: 897 Loc: North Mississippi Reg: 07-09-03. The 78-88 mid size GM cars use a 7.5" 10 bolt, which is about 58/5" wide. 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. If you're building a period-correct car, especially a Gasser, they are undoubtedly the perfect rearend for today. 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. to change without notice. Axle Shaft, Rear, 1541H Alloy, 28 Spline, 29.875 in. Good luck. Rear Suspension Width (Flange to Flange), Donor Vehicles Front and Rear SiteStats_3379(); '69 Javelin Six, '39 -48 Chevrolet 0000007740 00000 n Car, 67-69 Camaro, 64-67 Chevelle, I placed the order with Speedway motors in late July for my rear end housing and Currie axles. Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188. '62 Buick Skylark, '67 Chevrolet Six '69 Firebird For the do-it-yourselfer, Fabcraft offers a full-color manual with excellent tech info on the differential. 1967 Pontiac GTO - Wheel & Tire Sizes, PCD, Offset and Rims specs | Wheel-Size.com. Approximate rear end widths measured from backing plate to backing plate. 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. pontiac rear end decoder year ratio open posi model notes: . . Q: Why do Pontiac/Olds 9.3 parts cost more than those for a Ford 9-inch? 1956 and back have 10-spline axles. You must log in or register to reply here. GM 10-bolt rear ends have four basic ratio choices: 2.73, 3.08, 3.42, and 3.73 . 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. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Registered: 16 years ago. 0000002038 00000 n var t=new Date(); All but a few of the old factory limited-slips had been gathered up and beaten to death. For some time, only a small handful of ratios were available in new gears. As a result, many tribute cars and gasser-inspired builds had to stray from correctness. GU5 - 3.23's Optional auto trans gear ratio. 66-69 axle does not include 64 65 . "+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. 1969. Compared to the Ford, the P/O parts were more expensive. 1982 to 1984: 7.5 inch ring gear, 26 spline axle. '71 - 72 Pinto '67 Mustang 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. A Chevy 1/2 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear axle. ; Home 2; Home 3; Home / / pontiac rear end width chart. The intake valve size increased to 2.11" and the exhaust valve increased to 1.77"in size from the previous model. The Rochester Quadrajet carburetor was featured on the top spec GTO. Wheel Stud *. '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 62" 64-77 Chevelle, 73-76 Torino, 89 The Trophy Track's strengthened bearing hubs even use larger-than-stock bearings, the same ones found on spools. It's not to the same level as a concours-correct restoration; no judge will deduct points for an incorrect paint code. Popular Tools & Look-Ups. 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. '68 AMX Housings with leaf springs were used under Pontiac and Olds in 1957 and Olds only in 1958-60; Pontiacs had coil . Quality and service was excellent. So what we are left with is this: A fully capable, period-correct, brute of a differential with complete aftermarket support. 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. hi don, there is no major difference in the pontiac differential from 1949 to 1956 other than rear brake related parts. '72 Cougar, '74 Pontiac, '49 Plymouth, '61 Chevrolet Impala 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. Picture is from parts book. GU6 - 3.42's Standard manual trans gear ratio. BOP, Pontiac, Each. 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. . Rear Wheel: Production Years for Series : 1964 - 1967 : Price : $2,437-$3,095: Weight : 3015 lbs | 1367.581 kg: Performance. The Pontiac/Oldsmobile 9.3-inch is your axle. Ford continued cranking out the 9-inch in vast quantities well into the '80s. 0000000016 00000 n I believe the width, outside axle flange to outside axle flange, is 64 inches. The Dana rear end is a bolt in swap for the both the 8 3/8 and the 9 1/4, all rear ends can be had with the same size u joint yokes, vans are good place to. '72 Charger 57" 71-74 V-8 Mavericks 8", All '75-77 6's & 8's Maverick 5 Lug 8", 49-51 Ford, 57-59 Ford 9", 58" 78-88 Mid sized GM Car, Malibu/Monte Carlo (82 up Metric Studs), 80 Granada & Lincoln Versailles, 67-70 Mustang/Cougar/Fairlane, Regal with 10 bolt axle, S-10 P.U., 65-67 Nova, 60" 55-64 Chevy Car, 67-69 Camaro, 64-67 Chevelle, 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC 6 lug rear end 12 bolt Coil spring set up Possible gear ratio's 3.70. 70 2wd 6 lug rear end 12 bolt Possible gear ratio's 3:08, 3:40, 3:73 70-81 4wd 6 lug reared 71- Newer 2wd trucks use a 5 on 5 lug pattern 71-76 Full Size Cars " "" "" ". Prices and availability are subject 0000004229 00000 n On Gen1, the code is "hit" on the right side of the rear axle (passenger side) with the inscriptions facing the front of . It is now late November and I still do not have my axles. HVMo0WJ~H|V`-e)6`!$)=-~6x@h1|o 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. 2D reg-duty / 4D med-duty 4-pinion. Many Ford 9-inch parts are made offshore; they have smaller bearings and smaller diameter gears requiring less material. 18 0 obj<> endobj the versailles / granada rear ends from flange to flange is 58.5". Advance Design Trucks seem to be using rear The dana pinion stands forward about 2" more than the 9 1/4, the driveshaft will need to be shortened accordingly. CK 15/35, S10, RV. I actually had the axles in less than 4 days! '67 Mustang V-8, '69 Firebird All housings have strong, tapered axle tubes, come in numerous widths, and sport a variety of suspension brackets. The1971-'72 Buick GS/Skylark and Olds Cutlass A-body 8.5 10 bolt did not have C-clip axles. Engine Numbers. Underneath the back end of an overwhelming majority of gassers was a 1957-'64 Pontiac/Oldsmobile 9.3-inch differential. Additionally, it can be a relatively affordable way to enjoy a day at the track. '72 Cricket 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. If in doubt, consult one of our differential experts at (800)510-0950! But the components should at least be grounded in the era. 71-76 Full Size Cars " In their day Pontiac and Olds rearends had a well-deserved reputation for toughness and reliability, that's why they were found under so many hot rods on the dragstrip and the street. Rear-end questions. 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 . find the 1/2 ton size yoke on a dana 60. lx ?ZXj^|\\(|ka(XKIg#+ '55 -57 Chevrolet, 68-69 Fair lane 6 or 8 if you dont have a versailles just a regular 9 inch rear end,, that is also 60 ". pontiac rear end width chart. with 10 bolt axle, "A" body '69 Nova Please select a rear end that matches your vehicle below.General Motors has a wide range of front and rear ends! 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. It may not display this or other websites correctly. plate to backing plate. The current axle needs to be measured to verify width, because it plays an important part in determining what rim backspacing is necessary. The other drawback is that you can only check for clearance at the height the jack stands are set to. '41 -48 Ford, '68-72 Chevelle In searching the web I found the following links that have a massive of information on rear end widths and wanted to share. 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. This information will change as further information and corrections become available. 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. 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. Other changes were made to the limited-slip carrier, but strength was not adversely affected. 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. 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 . 1/4 Mile : 13.1 seconds. charles coker, 1953 pontiac tech advisor. The housing came in a couple of weeks but without the axles. You can do this by multiplying by the gear ratio. July 30, 2004 11:23PM. Plywood pieces work well for shims. Rear axle widths. The new 9.3-inch provided outstanding durability when subjected to abuse from all classes of race cars, including Top Fuel. var u='http://50chevy.freeservers.com/cgi-bin/sitestats.gif?p='+escape(location.href)+';r='+escape(document.referrer)+';t='+t.getTime(); to change without notice. Jeremy. Terms 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. Rim Width Measure from the inside of the outer lip at the bead seating point to the inner lip. Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. 2/4-door sedan body type. 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. '72 Cougar The power is transmitted to the road by the rear . 100 x 4.12. for highway driving. Click the above picture to view full size. It has been my experience that the 66 up axle is longer. 59" 68-83 Corvette , 67-70 Mustang/Cougar/Fairlane, 60" 55-64 Chevy ZE reg-duty / 4E med-duty 4-pinion. Mickey Thompson even produced aftermarket Olds and Pontiac magnesium gear cases that were frequently used in dragsters. well i have 1 from f 150 82 b/plate 2 b/plate it is 58". Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars . Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars, STOCK CENTER TO CENTER SPRING PERCH DISTANCE, Original VehiclesRear Suspension Width (Flange to Flange), Donor Vehicles Front and RearSuspension Width (Flange to Flange), Items It has an M-21 four speed and I am ready to upgrade the rear diff. Find your GMC/Chevy vehicle in the chart below and click on the illustration for a larger view. Vehicles with Similar . 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. some Chevy's Dana 44 or Dana 60 with leaf springs 6 lug, Gear ratio's Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. Look at the RPO codes. Will only work with bolt in style axles. All Rights Reserved. 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. Is a pontiac center section as olds rear ends of that era? 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. Prices and availability are subject 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. '69 Javelin Six , '70 dodge They are also easily modified to suit any chassis. 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. Contributing information were Bob Welch, J Forbes and various locations throughout the Web and Automotive Magazines. 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 Here you can see the three white paint splotches identifying the pinion size and the gears. 0000006068 00000 n Cylinders. 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. 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. "Stovebolt" Specifications. '70's Ford Grenada If it has the original Borg Warner posi then it is stronger than the Chevy 10 bolt. '67 Chevrolet big car Professional technical support is available . HVr0*u9$K;IG]&U&"x\s. compensate for drums as follows: 4" - Casting # Year: Body: Size: Notes: 2070051: 1960 - 71: A . Axle Images: Axle Details. Stop listening to your street rodder buddy and back away from the 9-inch. JavaScript is disabled. 0000001291 00000 n I guess 66 will work too, but I don't have any way to verify this, nor any more information for you. Maverick 5 Lug 8", 49-51 Ford, 57-59 Ford 9", 58" 78-88 Mid 71- Newer 2wd trucks use a 5 on 5 lug pattern Items The Borg-Warner HD rear end was dropped and replaced with the old 7.625 (7 5/8) inch rear end. Chrysler sent out the last of its 8.75-inch rearends in the early '70s. While the Ford 9-inch is the perceived benchmark of popular rearends today, in stock form the edge would go to the Pontiac/Olds. 6>"FlJz^l,*4&V0afw .a@z"PXdj}o`2/ OQs=`&qf aDK|/U32.)0i%q~P"BaLw.Y@`uwy#Do~vt*o~@$y-KZe]X3q'WWb2y)0`61"4@Q*`6k RPf\`H#@ ^M8-|&YxO-t with 10 bolt axle. . Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass. Learn more. )EgZ(WLlT!c!r~;+{( BRnpX{n>S;;5q N`+UHWF*FA6*BKm)JBw (painful to me while driving) I am pretty sure that it is the standard BOP 8.2, 10 bolt. Outside of flange to outside 54.25" 66 up are wider. 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. 1939 engine numbers run 1915447 through 2697267. 1310 yoke, Dana 60 used the heavy duty yoke which takes the larger 1350 yoke. . Buy in monthly payments with Affirm on orders over $50. Rear axle flange to flange is supposedly wider than the 68-72 AND the 78-88 GM A and G body cars. 18 21 Interest in vintage drag racing is now approaching a rapid boil. ). Factory Width. This reduced weight and eliminated the stock suspension, producing a spacious engine bay that eagerly accepted the chosen powerplant. S10. That being said, if you have at least 2" of clearance (and preferably more) between your stock tire/wheel combo and the frame or exhaust pipe, whichever is closest to the tire, then a 56" rear end width could possibly fit. i know in 1956 the pontiac dual range hydra-matic got a different driveshaft yoke. Ironically the heavy-duty nature of the 9.3 worked against it and played a part in its demise. Your Nova should be the same as 67-69. Accurate Differential Identification is the first and most important step in your differential repair, upgrade or overhaul project. 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. '73 Ventura, '65 Ram American 3.08. 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. Newest [ January 23, 2023 ] Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory Roadkill Powersports It'll help you sniff out the right parts and will walk you through building the differential for your gasser project. Lincoln Versailles, Regal with 10 bolt axle, S-10 P.U., 65-67 Nova. sized GM Car, Malibu/Monte Carlo (82 up Metric Studs), 80 Granada & The renewed interest in the P/O 9.3-inch generated high demand for any limited-slip units that were left. Buick and Pontiac 10-bolt rear ends used flange-retained axles instead of the C-clip retained axles like those on Chevrolet rears. This 1955 Chevrolet 3100 Step Side Pickup Truck was built by the Hot Rod Factory, Minnesotas premier hot rod shop and muscle car restoration facility. Q: What cars did they originally come in? manufactured by Pontiac in United States. 0000003369 00000 n Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale. Under the hood, Pontiac installed a 2.5 . This ratio is 3.08, perfect for cruisin. Very hard to find set, being as this is version is not being reproduced. 5D med-duty 4-pinion. The two makes used very similar differentials through the mid-'40s and into the '50s. '72-73 Torino, STOCK CENTER TO CENTER SPRING PERCH DISTANCE, '69 Chevrolet The following is a general Vehicle. 3:08, 3:40, 3:73 Information provided by:Joe GarciaThe Resto Rod Shop. some sources state that the 67 and latter are wider. 62" 64-77 Chevelle, 73-76 Torino, 89 Trans Am. SKU: CE-GMG7887X. B-O-P axles also have identifying grooves traveling along each side of . Six-cylinder truck engine block and head casting numbers. 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. of extensive information was contributed by R. Welch: Original Vehicles As the popularity of the Ford 9-inch increased the P/O 9.3 began to fade from the scene. Pontiacs had 1.75-inch-wide drums in 1957-58 while Olds used 2-inch from 1959-on, both used 2-inch brakes. In 1957, the Pontiac and Oldsmobile designs were combined and improved upon, producing a brand new 9.3-inch differential. 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. '69 Dodge Van, '71 Torino But it's been so long I can't be certain. Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. 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. "SPECIAL" CARS - 1938 Pontiac Special six. 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. GU2 - 2.73's Standard auto trans gear ratio. Its narrow front end with a plastic, wrapped-around bumper featured fog lights as an option. ends with widths ranging from 58"- 62". 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 The Firebird rear end would have been a BOP 8.2 10 bolt. My rear is the bolt in axles. '65 Cadillac, '66 Buick Wildcat Floor jack permits you to raise and lower wheels to check for clearance. These dimensions do not include brake drums and are measured from backing plate to backing plate. 0000005198 00000 n 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. . 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. Privacy Policy. Displays PONTIAC bolt patterns, wheel sizes and dimensions by model or view all matching vehicles that will swap or interchange with PONTIAC wheels. 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 following list The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. //-->. '72-73 Mazda, '28-40 Ford , '57 - 59 Ford 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. 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. "Hy-Tuff" axles are available for it from Moser and Mark Williams in any length (needed to . GM quit making the 9.3-inch in 1964. pontiac rear end width chart . According to published lists, the 55-64 Chevrolet rear end width is 60" from wheel mount surface to wheel mount surface. The early Nova's 62-67 would be about 2" shorter. '70 Duster 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 .