I'm not sure of the Find 1967 PONTIAC GTO Differential & Rear-End Components and get Free Shipping on Orders Over $99 at Summit Racing! Picture is from parts book. Information provided by:Joe GarciaThe Resto Rod Shop. What is the width of a 1959 pontiac rear end? All housings have strong, tapered axle tubes, come in numerous widths, and sport a variety of suspension brackets. ends with widths ranging from 58"- 62". cars 6" - 8" for large cars, '71 Colt Actual wheel track could be as much as 6" to 8"depending on drum size: '67 to '70 Mustang/Cougar 6 cyl. 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 '55 -57 Chevrolet, 68-69 Fair lane 6 or 8 manufactured by Pontiac in United States. . In searching the web I found the following links that have a massive of information on rear end widths and wanted to share. the versailles / granada rear ends from flange to flange is 58.5". They are also easily modified to suit any chassis. The '70 to '81 Camaro rear end is 61 inches. 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. Click the above picture to view full size. 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. GM 10-bolt rear ends have four basic ratio choices: 2.73, 3.08, 3.42, and 3.73 . 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 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. 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. 40/13. Privacy Policy. Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188. var I=new Image(1,1); I.src=u; Find your GMC/Chevy vehicle in the chart below and click on the illustration for a larger view. Rear axle widths. 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? 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. Many aftermarket options exist with all of the appropriate mount points. I just measured my 60' Pontiac and it is the same as my 62' Pontiac. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. 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 '66 Falcon, '69 Chevrolet They're tough, right? 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. Approximate rear end widths measured from backing plate to backing plate. Maverick 5 Lug 8", 49-51 Ford, 57-59 Ford 9", 58" 78-88 Mid Last Update: Feb. 24, 2023, 5:12 a.m. Accurate Differential Identification is the first and most important step in your differential repair, upgrade or overhaul project. There are three different third-member castings, but all will install into any '57-'64 Pontiac/Olds housing. 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 " "" "" ". 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 Rochester Quadrajet carburetor was featured on the top spec GTO. Will only work with bolt in style axles. compensate for drums as follows: 4" - '72 Cougar, '74 Pontiac, '49 Plymouth, '61 Chevrolet Impala 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. %twE_( H@v7H f)p* 0KO|O n>+ 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. Under the hood, Pontiac installed a 2.5 . 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. It has been my experience that the 66 up axle is longer. June 5, 2022 Posted by: Category: Uncategorized According to published lists, the 55-64 Chevrolet rear end width is 60" from wheel mount surface to wheel mount surface. list of rear ends and their dimensions to help narrow the search for a possible 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. Trans Am. CK 15/35, S10, RV. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. * Pinion #s GM 40 13 == 67 K D. Plywood pieces work well for shims. B-O-P axles also have identifying grooves traveling along each side of . sized GM Car, Malibu/Monte Carlo (82 up Metric Studs), 80 Granada & Jeff Smith: When Chevrolet built the first Camaros in 1967, they were already in production of both 10- and 12-bolt rear-end housings. //-->. On Gen1, the code is "hit" on the right side of the rear axle (passenger side) with the inscriptions facing the front of . 1967 Pontiac GTO - Wheel & Tire Sizes, PCD, Offset and Rims specs | Wheel-Size.com. It's not to the same level as a concours-correct restoration; no judge will deduct points for an incorrect paint code. There's absolutely no excuse to use the wrong differential in your gasser. 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. Axle Images: Axle Details. How To Box-In a Differential / Solid Axle Rear-End Housing; . '64 1/2-'65 Mustang Chrysler sent out the last of its 8.75-inch rearends in the early '70s. I placed the order with Speedway motors in late July for my rear end housing and Currie axles. Factory Width. Rear Wheel: Production Years for Series : 1964 - 1967 : Price : $2,437-$3,095: Weight : 3015 lbs | 1367.581 kg: Performance. . This posi has 4 pinion gears, which makes it about 2 times as strong as the Chevy Eaton posi. For instance, if both the engine and transmission deliver up to 100 ft./lbs. As a result, many tribute cars and gasser-inspired builds had to stray from correctness. Thanks to the efforts of the Fabcraft Metalworks crew all the parts necessary to rebuild one are available along with a selection of improved components and special tools to make working on them easier. Buick/Olds/Pontiac axles are typically retained with bearings. 59" 68-83 Corvette , 67-70 Mustang/Cougar/Fairlane, 60" 55-64 Chevy S10. Because the Borg-Warner axles were no longer being used for the G92 option, optional axle ratios changed slightly: LB9 305 TPI 5 speed went from 3.45 (1989) to 3.42 (1990) and the B2L 350 TPI went from 3.27 (1989) to 3.23 (1990). A: Extremely strong! Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars . All correct GM codes and part numbers. But the components should at least be grounded in the era. Check our the Chevy rear end gear ratio chart above to help you identify the correct gear to use. BOP, Pontiac, Each. 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. "Hy-Tuff" axles are available for it from Moser and Mark Williams in any length (needed to . (rear-wheel drive), automatic 3-speed gearbox . 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. pontiac rear end width chart. 1969. A Chevy 1/2 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear axle. pontiac rear end decoder year ratio open posi model notes: . 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. Today finding a P/O 9.3 may take some searching and it's helpful to know what to look for. GMC V-6 used a 3.21 Dana 44 used a standard chevy 1310 yoke, Dana 60 used the heavy duty yoke which takes the larger 1350 yoke. L = Low - Zero to Negative Offset, Offset typically RWD (Rear . You bring the gumption. The new P/O 9.3-inch immediately found its way into hot rods and race cars. The S10 10bolt 7.5/7.625" rear end is a good choice for the light low to medium horsepower small block cars. Once I had determined the desired width with the loose wheels and tape measure I constructed a wood rear end out of a 2x4. It is a little better than the Camaro 8.2 10 bolt. 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. Rusty but Rare 1976 Chevy K10 Sport Truck Revival! Vehicle. 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 '72-73 Mazda, '28-40 Ford , '57 - 59 Ford 71-76 Full Size Cars " Rear axle flange to flange is supposedly wider than the 68-72 AND the 78-88 GM A and G body cars. 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. plate to backing plate. 0000002277 00000 n Ford continued cranking out the 9-inch in vast quantities well into the '80s. Q: What cars did they originally come in? The Olds and Pontiac both used the same center section. Casting # Year: Body: Size: Notes: 2070051: 1960 - 71: A . Detroit gear & axle : AB : 3.36 : No : Powerglide : Detroit gear & axle : AC : 4.11 : No : 3 speed, O.D . Model. 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 . Buy in monthly payments with Affirm on orders over $50. But it's been so long I can't be certain. I believe the width, outside axle flange to outside axle flange, is 64 inches. However, the 9.3-inch differential was saved from obsolescence by a Texas-based company called Fabcraft Metalworks and its owner, Brad Duerst. 0000006068 00000 n 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. lx ?ZXj^|\\(|ka(XKIg#+ '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger 41/14. Needle BUILD IT YOURSELF - PARTS LISTS BUSHINGS TO ADAPT TUBE SIZE . & Conditions, Ford Mustang II/Pinto & Mercury Capri/Bobcat, Monte Carlo, Regal, etc. $1,825.00. 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. 0000000911 00000 n Picture is from parts book. A: Ford 9-inch is like the small-block Chevy of rearends. 5E med-duty 4-pinion. What I did is shown below in the photos. Other changes were made to the limited-slip carrier, but strength was not adversely affected. Below matches. '69 Oldsmobile 88, '72 Chrysler 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. 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. Underneath the back end of an overwhelming majority of gassers was a 1957-'64 Pontiac/Oldsmobile 9.3-inch differential. The 301 was Pontiac's only V-8 left in production by 1979. 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. 1985 to 1989: 7.625 inch ring gear, 26 spline axle. '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger Shop Full Width; Shop With Sidebar; . 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. Compared to the Ford, the P/O parts were more expensive. Mercury Capri/Bobcat, Monte Carlo, Regal, etc. Forbes and various locations throughout the Web and Automotive Magazines. The 78-88 mid size GM cars use a 7.5" 10 bolt, which is about 58/5" wide. Post: rear end width chart (Topic#173541) greg pharr Contributor Posts: 897 Loc: North Mississippi Reg: 07-09-03. 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. Items 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. 1/4 Mile : 13.1 seconds. Registered: 16 years ago. 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. 0 The 8.2" BOP (Buick, Oldsmobile, Pontiac) model is slightly different in that it uses pressed on axle bearings and instead of c-clips . The non C-clip 8.5" 10 bolt, type "C" rearend was used in some 1969-'72 Pontiac GP and 1970-'72 Monte Carlo. 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. Pontiac labeled theirs Safe-T-Trac while Oldsmobile called it Anti-Slip. 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. %%EOF 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. . It'll help you sniff out the right parts and will walk you through building the differential for your gasser project. Axle Shaft, Rear, 1541H Alloy, 28 Spline, 29.875 in. Advance Design Trucks seem to be using rear '67 to '70 Mustang/Cougar 8 cyl. Building an example that truly reflects what was around back then takes a certain passion for correctness. |;|tB70t:`!t;?Yp?o^16Y*Ra(k ;6te64^bv n+;:G57@hbM_5 N '73 Ventura, '73 Mustang, '36 Plymouth, '54-56 Ford Pickup var t=new Date(); Quality and service was excellent. xb```"~> !%1#XY} P A1@G7L/^nkX,i{j^vL@l ` n 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 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC Additionally, it can be a relatively affordable way to enjoy a day at the track. 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 . 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. 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. The following is a general 0000015097 00000 n 0000008567 00000 n The early Nova's 62-67 would be about 2" shorter. 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. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. 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. 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 End Widths - - Back - - Home > Specs > Rear End Widths : Representative for comparison purposes only. Year. Hot Rod Blueprints, Drawings and Tech Tips For The Hot Rod Enthusiast!. 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. It has the 4.75" bolt pattern, and ratios are usually 3.55-3.73, but sometimes you'll find a 3.36.
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