pontiac rear end width chart pontiac rear end width chart

Re: Rear end interchangability 1965 to 1967 IMPAL. 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. Richmond Gear calls the 57-64 Olds/Pontiac rear a GM 9.3" Axle (the ring gear is 9.3 inches). 1990 to 1992: 7.625 inch ring gear, 28 spline axle. Here you can see the three white paint splotches identifying the pinion size and the gears. JavaScript is disabled. 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 . The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. 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. The Borg-Warner HD rear end was dropped and replaced with the old 7.625 (7 5/8) inch rear end. a Custom Classic Truck" Peterson Publication; June or July 1999, . 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. Model. Housings with leaf springs were used under Pontiac and Olds in 1957 and Olds only in 1958-60; Pontiacs had coil . The 1967 GTO came in 3 speed Automatic and a 4 Speed manual. Discussion in 'Traditional Hot Rods' started by Ruiner, Sep 4, 2006. 0000000016 00000 n "" "" ". The 1967 Firebird has the particularity to have a rear axle held by arms while in 1968 rear axle was hold only by the blades/spring of suspensions. Q: What cars did they originally come in? My '64's measure 54.25". 0000002353 00000 n 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. Engine Numbers. to change without notice. 66-69 axle does not include 64 65 . If you're building a period-correct car, especially a Gasser, they are undoubtedly the perfect rearend for today. Part Number: YGA-21289. Popular Automatic Transmission Identification Chart; Rear-End Widths of Classic American Cars; Follow Us on Flipboard . How to cut your Ford F100 long bed to short bed in a weekend DIY project ~ Two-Part video details cutting frame and bed. 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 1939 engine numbers run 1915447 through 2697267. Correct two piece design posi unit, exact for only 67 - 69 Firebird 10 bolt 8.2 rears. In searching the web I found the following links that have a massive of information on rear end widths and wanted to share. I guess 66 will work too, but I don't have any way to verify this, nor any more information for you. "SPECIAL" CARS - 1938 Pontiac Special six. '72 Cougar '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 1967 Pontiac GTO - Wheel & Tire Sizes, PCD, Offset and Rims specs | Wheel-Size.com. Wilwood Engineering designs and manufactures high-performance disc brake systems. J.T. This posi has 4 pinion gears, which makes it about 2 times as strong as the Chevy Eaton posi. It may not display this or other websites correctly. Product By Category; Products By SKU/ID; . The correct width for 59' & 60' is 63-1/4" I believe. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms Professional technical support is available . All housings have strong, tapered axle tubes, come in numerous widths, and sport a variety of suspension brackets. pontiac rear end decoder year ratio open posi model notes: . Detroit gear & axle : AB : 3.36 : No : Powerglide : Detroit gear & axle : AC : 4.11 : No : 3 speed, O.D . I have heard that a 1st gen Pontiac Firebird rear is wider, but I am not sure by how much. '69 Nova What I did is shown below in the photos. 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. M&M CUSTOM. Valves. The Rochester Quadrajet carburetor was featured on the top spec GTO. 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. . 2/4-door sedan body type. '67 Mustang 0000004229 00000 n /** * Error Protection API: WP_Paused_Extensions_Storage class * * @package * @since 5.2.0 */ /** * Core class used for storing paused extensions. Six rib cases will be found on '57 and '58 rearends, '59-64s have seven ribs. 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 CK 15/35, S10, RV. Rusty but Rare 1976 Chevy K10 Sport Truck Revival! The following tags will show a 4L80E transmission as an example. 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. '67 to '70 Mustang/Cougar 8 cyl. There's absolutely no excuse to use the wrong differential in your gasser. some sources state that the 67 and latter are wider. Last Update: Feb. 24, 2023, 5:12 a.m. 0000012085 00000 n Learn more. I actually had the axles in less than 4 days! A: Extremely strong! GM quit making the 9.3-inch in 1964. You're building a gasser. For the do-it-yourselfer, Fabcraft offers a full-color manual with excellent tech info on the differential. In 1957, the Pontiac and Oldsmobile designs were combined and improved upon, producing a brand new 9.3-inch differential. 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? the versailles / granada rear ends from flange to flange is 58.5". I'm running the wider blazer rear end . 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. Mopar Rear Axle. 70-81 4wd 6 lug reared 1940 engine numbers run 2697268 through 3665902. You are using an out of date browser. cars 6" - 8" for large cars, '71 Colt 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. Several years later, the popularity of this almost deceased differential was rapidly swelling. But when it came to rearends, the overwhelming favorites were those our of '57-64 Pontiacs and Oldsmobiles. Vehicle. Rear axle flange to flange is supposedly wider than the 68-72 AND the 78-88 GM A and G body cars. 5" for small cars 5" - 6" for intermediate 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. It has been my experience that the 66 up axle is longer. Understanding Aluminum Heads and Spark Plugs, OK Go Needing/Getting ~ Its All In The Timing, An Online Magazine for DIY Hot Rod Builders. '69 Oldsmobile 88, '72 Chrysler Rear End Widths - - Back - - Home > Specs > Rear End Widths : Representative for comparison purposes only. . charles coker, 1953 pontiac tech advisor. Add Width to to change without notice. A Chevy 1/2 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear axle. SKU: CE-GMG7887X. Diagram. There is also a yellow stamp 10 22 which is the . It'll help you sniff out the right parts and will walk you through building the differential for your gasser project. Copyright 2023 Welcome To Rodplans! Dec 20, 2007. Drag Racing 101 ~ Everything You Need to Know! '67 Chevrolet Six Buy in monthly payments with Affirm on orders over $50. 0000005198 00000 n Aftermarket support followed in the form of beefy axles, gears, spools, couplers, and Mickey Thompson's aluminum and magnesium centersections. if you dont have a versailles just a regular 9 inch rear end,, that is also 60 ". The new P/O 9.3-inch immediately found its way into hot rods and race cars. used a 3.21 Dana 44 used a standard chevy Approximate rear end widths measured from backing plate to backing plate. 0000000716 00000 n Check here to see if your engine is correct for your year truck. also note on the A4's (auto's) shifter console if the gear selector for 1 is missing. Plywood pieces work well for shims. '64 1/2-'65 Mustang Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. trailer Actual wheel track could be as much as 6" to 8"depending on drum size: '67 to '70 Mustang/Cougar 6 cyl. Registered: 16 years ago. 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. 60" 60's GMC and 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. 0000000991 00000 n The other drawback is that you can only check for clearance at the height the jack stands are set to. 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. Buick and Pontiac 10-bolt rear ends used flange-retained axles instead of the C-clip retained axles like those on Chevrolet rears. var u='http://50chevy.freeservers.com/cgi-bin/sitestats.gif?p='+escape(location.href)+';r='+escape(document.referrer)+';t='+t.getTime(); The 1' wider that was stated in paul/chuck 's book may have been miss spoke. pontiac rear end width chart. 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 : They were robust, drop-out-style third members that offered the strength and serviceability racers required. Billet-steel yokes and carrier caps could be added to make the 9.3-inch nearly bomb-proof. '69 Javelin Six, '39 -48 Chevrolet Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. '71 - 72 Pinto getting back to the differential, why bill didn't cover 1956 i don't know, might have just been a typo or overlooked. 3.21 to 3.92. %twE_( H@v7H f)p* 0KO|O n>+ Rear axle widths. Trans Am. Chrysler sent out the last of its 8.75-inch rearends in the early '70s. They're tough, right? 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. i.e. 1957-58 are 29-spline and 1959-1964 are 31 spline. Casting # Year: Body: Size: Notes: 2070051: 1960 - 71: A . Please select a rear end that matches your vehicle below.General Motors has a wide range of front and rear ends! 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 55-57 Chevy car rear-end is almost a bolt in, the perches need to be relocated to the top of the housing though. Stop listening to your street rodder buddy and back away from the 9-inch. Find 1967 PONTIAC GTO Differential & Rear-End Components and get Free Shipping on Orders Over $99 at Summit Racing! Length, GM 8.2 in. 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 . Picture is from parts book. '72 Chrysler. Car, 67-69 Camaro, 64-67 Chevelle, They are also easily modified to suit any chassis. 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. hi don, there is no major difference in the pontiac differential from 1949 to 1956 other than rear brake related parts. Interest in vintage drag racing is now approaching a rapid boil. '71 Comet , '71- 72 Pinto, '39 -48 Chevrolet, '68 GTO 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. 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. 57" 71-74 V-8 It has been my experience that the 66 up axle is longer. well i have 1 from f 150 82 b/plate 2 b/plate it is 58". The two makes used very similar differentials through the mid-'40s and into the '50s. GM with 7.5 & 7.625 Ring Gears : 1985-1997. '72-75 Datsun Pickup 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 The power is transmitted to the road by the rear . 1982 to 1984: 7.5 inch ring gear, 26 spline axle. ; Home 2; Home 3; Home / / pontiac rear end width chart. 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 ; . '65 Cadillac, '66 Buick Wildcat Will only work with bolt in style axles. It is now late November and I still do not have my axles. RWD (rear-wheel drive), automatic 4-speed gearbox. . Your Nova should be the same as 67-69. What is the width of a 1959 pontiac rear end? The Firebird rear end would have been a BOP 8.2 10 bolt. i know in 1956 the pontiac dual range hydra-matic got a different driveshaft yoke. Axle Images: Axle Details. Displays PONTIAC bolt patterns, wheel sizes and dimensions by model or view all matching vehicles that will swap or interchange with PONTIAC wheels. '67 Mustang Six , '68 AMX 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. To say I was disappointed by the service provided by this company would be an understatement. HVMo0WJ~H|V`-e)6`!$)=-~6x@h1|o . The End of an Era. GU6 - 3.42's Standard manual trans gear ratio. * Ring #s GM 40 13 == 67 - 8 - A. July 30, 2004 11:23PM. 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. Click the above picture to view full size. 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. A period gasser can be built by scrounging swap meets, salvage yards, and the Internet for many of the components necessary to complete a genuine example of one of the dominant race cars from the 1950s, '60s and '70s. 0000002038 00000 n Calculating the torque multiplication that your axle gears provide is quite easy. 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. Prices and availability are subject All but a few of the old factory limited-slips had been gathered up and beaten to death. @`AWG^8J>4j|^Vk@oXq7@@/9ep Its pretty easy to find a good one if you are in an area with a few junkyards. Q: Why do Pontiac/Olds 9.3 parts cost more than those for a Ford 9-inch? 20 0 obj<>stream * Pinion #s GM 40 13 == 67 K D. 0000001644 00000 n Rim Width Measure from the inside of the outer lip at the bead seating point to the inner lip. Look at the RPO codes. GMC V-6 The '70 to '81 Camaro rear end is 61 inches. What is the width of a 1959 pontiac rear end? Contributing information were Bob Welch, J Forbes and various locations throughout the Web and Automotive Magazines. 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. GU3 - 3.08's V6 gear ratio. The Olds and Pontiac both used the same center section. May 7, 2009. For a variety of reasons, not the least of which is the current Gasser craze, Pontiac and Olds rearends are enjoying renewed popularity. but the body with is 1" wider on 66-67. Today finding a P/O 9.3 may take some searching and it's helpful to know what to look for. stock from flange to flange it is 60 ". $1,825.00. Good luck. For die-hard purists, it soon became a difficult proposition to build a worthy P/O 9.3-inch as aftermarket support subsided and the supply of virgin factory parts withered. Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale. The high-volume production runs of Ford-9 inch components allow them to be relatively inexpensive. GU5 - 3.23's Optional auto trans gear ratio. And yet, all too often, a beautiful gasser built today is sitting on top of a Ford 9-inch axle. 18 21 GM / Chevy - Differential IdentificationShop by your differential. '70 Dodge, '71-77 Maverick Pontiac Differential Codes Year Model Rear Ratio Tooth Count Std Code Posi Code 1970 Big Pontiac 2.56 41/16 UC VC 1970 Big Pontiac 2.73 41/15 UD VD 1970 Big Pontiac 2.93 41/14 UE VE 1970 Big Pontiac 3.23 42/13 UG VG 1970 Big Pontiac 3.42 41/12 UH VH 1970 Firebird 2.73 41/15 CRX CRY '70's Ford Grenada They were tough with 9.3-inch ring gears, big pinion shafts, and large-diameter bearings and tough axles. '69 Javelin Six , '70 dodge HVr0*u9$K;IG]&U&"x\s. (Dart/Duster) with V8&3/4 axle, Table taken from "How to Build PY Online Forums - Bringing the Pontiac Hobby Together, Classic TECH- specs, codes, resto issues FORUMS. 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. I came up with a cheap simple method to confirm the results of the measurement taken with the loose wheels. So why did the Ford 9-inch become the premier differential of modern day hot rodding? 1982-1997. Ford continued cranking out the 9-inch in vast quantities well into the '80s. GM 10-bolt rear ends have four basic ratio choices: 2.73, 3.08, 3.42, and 3.73 . candidate to replace the torque tube rear end or just get a better set of gears The final drive ratio is identified with 2 or 3 letters codes. while a folding bench was standard for the rear passengers. 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. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. 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. In 1958 a good thing got better when limited-slip differentials were offered. some Chevy's Dana 44 or Dana 60 with leaf springs 6 lug, Gear ratio's 3.08. The 10-bolt was used in all the low performance applications. I've read enough times that '64/'65 are 54.25" and '66's are an inch wider that I believe it. I just measured my 60' Pontiac and it is the same as my 62' Pontiac. S10. '72 Dart Newest [ January 23, 2023 ] Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory Roadkill Powersports Its role in drag racing was limited to primarily Stock, Super Stock, and Factory Experimental Fords. Jeremy. '72-73 Mazda, '28-40 Ford , '57 - 59 Ford A: By casting numbers and date codes, along with other external characteristics, all of which are shown in the manual by Zach Davidson and Brad Duerst. All Rights Reserved. )EgZ(WLlT!c!r~;+{( BRnpX{n>S;;5q N`+UHWF*FA6*BKm)JBw xb```"~> !%1#XY} P A1@G7L/^nkX,i{j^vL@l ` n Check our the Chevy rear end gear ratio chart above to help you identify the correct gear to use. Many aftermarket options exist with all of the appropriate mount points. 62" 64-77 Chevelle, 73-76 Torino, 89 Trans Am. Like most american muscle cars of the Day the Pontiac GTO was a front engined rear wheel driven car. '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger 18 0 obj<> endobj 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. According to published lists, the 55-64 Chevrolet rear end width is 60" from wheel mount surface to wheel mount surface. Building a gasser is a satisfying way to blast down the track, turn some heads, and salute the good old days of racing. Outside of flange to outside 54.25" 66 up are wider. How To Box-In a Differential / Solid Axle Rear-End Housing; . 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 . Buick/Olds/Pontiac axles are typically retained with bearings. 71- Newer 2wd trucks use a 5 on 5 lug pattern Source for tire and wheel application fitment data. Information provided by:Joe GarciaThe Resto Rod Shop. There have been non C-clip rearends found in Chevelle wagons, and some El Caminos through at least 1974. The following information is provided to help you identify the differential you are working on. The 8.2" BOP (Buick, Oldsmobile, Pontiac) model is slightly different in that it uses pressed on axle bearings and instead of c-clips . 0000008567 00000 n find the 1/2 ton size yoke on a dana 60. 3:08, 3:40, 3:73 Several features are common to most gassers. 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 " "" "" ". ?|-Zce14^nF%67( }fSRaQfqX?|{8{>? VX5EX=b :"-'k>.VbyV^-nWxv-WgUtpo>sMhlI4ZV<4+s>|2k>\x{7M^^x. You bring the gumption. Grand Prix. 0000002277 00000 n The1971-'72 Buick GS/Skylark and Olds Cutlass A-body 8.5 10 bolt did not have C-clip axles. Originally posted by SUNNYD @Mar 22 2007, 10:23 PM~7534589. '67 Mustang V-8, '69 Firebird Good third-member cores are also relatively easy to come by, as many are now being saved from recyclers by fellow enthusiasts. You bring the gumption. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. . It is a little better than the Camaro 8.2 10 bolt. Year. 40/13. Estimated Lead Time: 5-Days. 100 x 4.12. 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. 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. 0 Chrome 10 Bolt Rear End Cover Fits Chevy Pontiac Oldsmobile10 Bolt Differential The following is a general 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. '73 Ventura, '65 Ram American 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. lx ?ZXj^|\\(|ka(XKIg#+ The intake valve size increased to 2.11" and the exhaust valve increased to 1.77"in size from the previous model. But the components should at least be grounded in the era. '72 Cougar, '74 Pontiac, '49 Plymouth, '61 Chevrolet Impala 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. In this 489 case it is 3:91 gears and a 1 7/8 pinion. 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. 0000002004 00000 n may be different than pictured. Advance Design Trucks seem to be using rear ends with widths ranging from 58"- 62". 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. For instance, if both the engine and transmission deliver up to 100 ft./lbs. 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. These smaller volumes and domestic content result in slightly higher prices. Quick question, I'm looking at a '50 Pontiac and was wondering if it had a torque-tube or a driveshaft. June 5, 2022 Posted by: Category: Uncategorized 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. 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 . '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger Factory Width. . However, the 9.3-inch differential was saved from obsolescence by a Texas-based company called Fabcraft Metalworks and its owner, Brad Duerst. No one is making new 31-spline side gears at this time, which is not good. Needle BUILD IT YOURSELF - PARTS LISTS BUSHINGS TO ADAPT TUBE SIZE . 5E med-duty 4-pinion. Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars . . 0000009416 00000 n Contributing information were Bob Welch, J But it's been so long I can't be certain. Axle Shaft, Rear, 1541H Alloy, 28 Spline, 29.875 in. with 10 bolt axle. 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 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.