pontiac rear end width chart

They are also easily modified to suit any chassis. . 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. 0000007740 00000 n )EgZ(WLlT!c!r~;+{( BRnpX{n>S;;5q N`+UHWF*FA6*BKm)JBw charles coker, 1953 pontiac tech advisor. Popular Automatic Transmission Identification Chart; Rear-End Widths of Classic American Cars; Follow Us on Flipboard . Needle BUILD IT YOURSELF - PARTS LISTS BUSHINGS TO ADAPT TUBE SIZE . In 1957, the Pontiac and Oldsmobile designs were combined and improved upon, producing a brand new 9.3-inch differential. Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188. 1/4 Mile : 13.1 seconds. So why did the Ford 9-inch become the premier differential of modern day hot rodding? HVr0*u9$K;IG]&U&"x\s. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. '70 Nova BOP, Pontiac, Each. 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 . For the do-it-yourselfer, Fabcraft offers a full-color manual with excellent tech info on the differential. CK 15/35, S10, RV. 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. . PY Online Forums - Bringing the Pontiac Hobby Together, Classic TECH- specs, codes, resto issues FORUMS. 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. In 1958 a good thing got better when limited-slip differentials were offered. Dec 26, 2008. Once I had determined the desired width with the loose wheels and tape measure I constructed a wood rear end out of a 2x4. While the Ford 9-inch is the perceived benchmark of popular rearends today, in stock form the edge would go to the Pontiac/Olds. Source for tire and wheel application fitment data. 1958-1970 Full size rear Differential Identification - 348-409.com My 69 gto convert., purchased within the last year has a painful 2.56 rear gear. Terms of Service. Willwood Engineering. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. i.e. 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. If you noticed the axles are missing you would be correct. Please select a rear end that matches your vehicle below.General Motors has a wide range of front and rear ends! [ July 26, 2022 ] Reversing Gears ~ Rescuing One's Own Derelict 1967 Pontiac GTO Builds and Examples [ July 24, 2022 ] . 66-69 axle does not include 64 65 . jack39rdstr # 169783 04/02/10 02:03 PM. 0000002277 00000 n The two makes used very similar differentials through the mid-'40s and into the '50s. GMC V-6 '67 Chevrolet big car The End of an Era. 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. Rim Width Measure from the inside of the outer lip at the bead seating point to the inner lip. . Rear Axle Width Question - Restoration and Repair Help Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars . If you're building a period-correct car, especially a Gasser, they are undoubtedly the perfect rearend for today. I'm running the wider blazer rear end . '65 Cadillac, '66 Buick Wildcat Billet-steel yokes and carrier caps could be added to make the 9.3-inch nearly bomb-proof. 1957 Pontiac Chieftain 2/4-Door Sedan full range specs 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. If it has the original Borg Warner posi then it is stronger than the Chevy 10 bolt. 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. Like most american muscle cars of the Day the Pontiac GTO was a front engined rear wheel driven car. Rear Axle Identification - venturestruckparts.com 0 70 2wd 6 lug rear end 12 bolt Possible gear ratio's 1969. sized GM Car, Malibu/Monte Carlo (82 up Metric Studs), 80 Granada & On Gen1, the code is "hit" on the right side of the rear axle (passenger side) with the inscriptions facing the front of . Additionally, it can be a relatively affordable way to enjoy a day at the track. 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. Other changes were made to the limited-slip carrier, but strength was not adversely affected. 0000002004 00000 n The Rochester Quadrajet carburetor was featured on the top spec GTO. "" "" ". Wilwood Engineering designs and manufactures high-performance disc brake systems. Items '74 Valiant, '57 Ford '69 Nova with 10 bolt axle, "A" body 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. Last Update: Feb. 24, 2023, 5:12 a.m. 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 : This reduced weight and eliminated the stock suspension, producing a spacious engine bay that eagerly accepted the chosen powerplant. "+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. PDF Differential ID Chart - Summit Racing Equipment 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. If in doubt, consult one of our differential experts at (800)510-0950! PDF Pontiac Diff Codes - wildaboutcarsonline.com * Pinion #s GM 40 13 == 67 K D. rear end width chart - Chevy Message Forum - Restoration and Repair Help Rusty but Rare 1976 Chevy K10 Sport Truck Revival! '70 Dodge, '71-77 Maverick Task Force width ranges at this time. '69 Javelin Six, '39 -48 Chevrolet & Conditions, Ford Mustang II/Pinto & Mercury Capri/Bobcat, Monte Carlo, Regal, etc. July 30, 2004 11:23PM. 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. var t=new Date(); '72 Chrysler. S10. 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 " "" "" ". Factory Width. 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. 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. %twE_( H@v7H f)p* 0KO|O n>+ Contributing information were Bob Welch, J Forbes and various locations throughout the Web and Automotive Magazines. You bring the gumption. I've heard 'prolly torque-tube' from most that I've asked My friend's stock '41 Pontiac is open drive, so I would imagine that the '50 is as well. 1957-1964 Pontiac and Oldsmobile Rearends - Revival - MotorTrend hi don, there is no major difference in the pontiac differential from 1949 to 1956 other than rear brake related parts. Compared side-by-side with the Chrysler, it boasted stronger gears and larger bearings. 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. 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. pontiac rear end decoder year ratio open posi model notes: . birdfire.com : 67-81 rear end - Free Rear axle widths. 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. 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. Mercury Capri/Bobcat, Monte Carlo, Regal, etc. 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. In searching the web I found the following links that have a massive of information on rear end widths and wanted to share. stock from flange to flange it is 60 ". 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. NFTs Simplified > Uncategorized > pontiac rear end width chart. '71 - 72 Pinto All correct GM codes and part numbers. 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. Rear Axle Widths - Hemmings Motor News 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 Post: rear end width chart (Topic#173541) greg pharr Contributor Posts: 897 Loc: North Mississippi Reg: 07-09-03. 1967 Pontiac GTO - Wheel-Size.com //-->. Calculating the torque multiplication that your axle gears provide is quite easy. 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 . 1965 Pontiac Tempest LeMans Specifications - Conceptcarz.com 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC The following information is provided to help you identify the differential you are working on. 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 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. Richmond Gear calls the 57-64 Olds/Pontiac rear a GM 9.3" Axle (the ring gear is 9.3 inches). '69 Oldsmobile 88, '72 Chrysler 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. 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. 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 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. 8.5 firebird rearend width? | Team Camaro Tech with 10 bolt axle. What is the width of a 1959 pontiac rear end? 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. 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 . The power is transmitted to the road by the rear . Several years later, the popularity of this almost deceased differential was rapidly swelling. 5" for small cars 5" - 6" for intermediate 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 . '41 -48 Ford, '68-72 Chevelle Check here to see if your engine is correct for your year truck. 59" 68-83 Corvette , 67-70 Mustang/Cougar/Fairlane, 60" 55-64 Chevy Wheel Stud *. some sources state that the 67 and latter are wider. * Ring #s GM 40 13 == 67 - 8 - A. ends with widths ranging from 58"- 62". 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. Rear Suspension Width (Flange to Flange), Donor Vehicles Front and Rear 2/4-door sedan body type. Q: What cars did they originally come in? 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. It's not to the same level as a concours-correct restoration; no judge will deduct points for an incorrect paint code. You must log in or register to reply here. You bring the gumption. The housing came in a couple of weeks but without the axles. The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. '72 Cougar 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. These dimensions do not include brake drums and are measured from backing plate to backing plate. For some time, only a small handful of ratios were available in new gears. Approximate rear end widths measured from backing plate to backing plate. a Custom Classic Truck" Peterson Publication; June or July 1999,