Annoying design. Mid 1966 to 1972 Rear axle is about 61" axle flange to axle flange (where brake drums butt up against), but early 66's before about January production were only 60". Buick/Olds/Pontiac axles are typically retained with bearings. This guide provides information on exterior features, interior features, mechanical features, paint colors/codes, as well as detailed chassis and engine number sections applicable to the 1966 Pontiac GTO. Approximate rear end widths measured from backing plate to backing plate. Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars. 48" - 49". 50" - 51". Edit - found this posted in another thread by our resident expert Freddy (big gear head) re the Firebird 10 bolt rear. 40/13. note 64 64 axle is same. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. General Motors made its performance vehicles using many of the same components. The Borg-Warner HD rear end was dropped and replaced with the old 7.625 (7 5/8) inch rear end. 1970 : W/C-lock axles-Front of Right hand (passenger) tube,about 3" from carrier. As mentioned before, they will both bolt into an A body, but the internals are different. # 503346070. 8.5 ring gears were common in the early 1970s until the mid 1980s. 42/13. After that, GM instituted the "Corporate" rear end, a 10-bolt rear end that integrated feartures of both the 10- and 12-bolt rear ends. A change in rear gear ratio can be one of the most satisfying modifications you can make on your Pontiac, and it can be one of the most cost effective. Convertible = 12,798. It wont fit on the Camaro.It'll fit on the Nova since you made it work on your car.68 to 79 Nova has a 42 7/16" length between centerlines of spring seats.70-81 Camaro has a 45 3/8" length between centerlines of spring seats.The 70-81 Camaro,and 69 Chevelle share the same rearend width of 55 1/4".The 68 to 79 Nova has a rearend width of 54 1/4". Rear Ends. Pontiac Rear End Types. Ultimate Warrior : Join Date: Jul 2005. 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. The cover also has some kinda flat spots on the outer edges of it. Compressed Length; M24 x 2.0 Spindle Nut Thread Size; 36mm Spindle Nut Hex Head Size; 27 Input Shaft Spline; (30) Output Shaft Splines; Self Lock Axle Nut Locking Type Condition : Remanufactured Replaces OE Number : 10345091, 15296759 Quantity Sold : Sold individually Warranty : 1-year or 18,000-mile A1 Cardone limited E70 x 14 (b) F70 x 14 (b) Type (bias, radial, etc.) but the body with is 1" wider on 66-67 Home ; Search for Specifications Find automobile specifications; Directory of Services Listing of dealers, companies and individuals offering cars, parts and services for antique, classic, vintage and muscle cars. PY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street > 66 GTO Rear End Width Reply Thread Tools: Display Modes #1 10-26-2009, 10:17 PM old66tiger. Oldsmobile. In searching the web I found the following links that have a massive of information on rear end widths and wanted to share. NOTES (a) On four road wheels std. "The Firebird will have the 8.2 10 bolt Buick/Pontiac rear end, which is a little stronger than the Chevy 8.2 10 bolt. Pontiac used it when casting certain rear axle housings, connecting rods, and crankshafts. The 1969 Pontiac GTO measures 75.00 inches in width, The 1969 Pontiac GTO measures 201.50 inches in length, and has a wheelbase of 112.00 inches. Engine Oil: 120 ft-lbs. GU3 - 3.08's V6 gear ratio. Rear Wheel Size: 16 x 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. Rear Ends. Get detailed information on the 2001 Pontiac Firebird including specifications and data that includes dimensions, engine specs, warranty, standard features, options, and more. Applications are similar to the big GM 14-bolt and the Dana 70. Save. Vehicles with Similar Dimensions. Make Model Trim Year Range Torque; PONTIAC. Total Cooling System Capacity (qts): 11.5. 66-69 axle does not include 64 65 . At Dutchman, ordering a stock replacement axle or axles just got easier. J.T. Axle tube flange to Axle tube flange: 54 1/4" 55 1/4" Between centerlines of spring seats: 42 7/16" APPLICATION. Front. For instance: 86.0, 50.6, 50.3 -- 1952 Morris Minor. Sep 17, 2010. Need MPG information on the 1997 Pontiac Firebird? A Chevy 12 bolt has an upsidedown V on it. Standard. Rear Wheel: Production Years for Series : 1968 - 1972 : Price : $2,831-$4,210: Weight : 3081 lbs | 1397.518 kg: Performance. 0. General Motors rear end differentials are referred to by the diameter of the ring gear, i.e. Revolution replacement series axles are made from 1541H Steel and utilize a state of the art computer controlled heat treated process. Click the above picture to view full size. Never assume that the volume is at stock spec. Dec 20, 2007. Rear-end track width measurements of classic American cars including Chevrolet, Ford, and Mopar vehicle rear axle widths Newest [ September 17, 2021 ] Father and Son Built 1933 Ford 5-Window Coupe Hot Rod Hot Rod Lifestyle The 78-88 mid size GM cars use a The types of information include body dimensions, bore and stroke, firing order, rocker ratio, valve system timing, ignition system breaker gap for the 1967 Pontiac Firebird. Standard. This axle, with a 7.56-inch ring gear, is the fronted for 4.0-liter Ford Rangers and Explorers/Mazda Navajos. Location : Rear Driver Side Notes : 31.25 in. Plywood pieces work well for shims. 53-60 Super 88. The first section will list wheelbase, front track and rear track of vehicles in inches, so that those interested in frame swaps or clip swaps can find the correct donor vehicle. 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. Get detailed information on the 2004 Pontiac GTO including specifications and data that includes dimensions, engine specs, warranty, standard features, options, and more. 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. Revolution Gear and Axle, Replacement series, Rear axle shaft for GM 8.2 and 8.5 Inch 73-77 Chevelle and El Camino, fits both Left and Right side, 30.5 Inch 28 Spline (OE# 1255801 / Hollander# 447-1067). Only show this user. 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. 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). Grand Prix. Actual wheel track could be as much as 6" to 8"depending on drum size: 46" to 47" '66 to '77 Bronco 48" to 49" '72 to '75 Datsun pickup '71 Dodge Colt '72 to '73 Mazda 50" to 51" '73 to '76 A-Body Mopar '65 AMC American 1970 : non c-lock axles-: Rear of left hand (driver) tube,about 3" from carrier. See a handy chart of the Rear Ends we offer. 7.2 and 8.5 inch. Thus these Nova rearends are the widely proclaimed to be the"bolt-in" swap for 1st gens. Number produced: Total: 96,946. The final drive ratio is identified with 2 or 3 letters codes. Final Drive Axle Ratio (:1): 3.46. The base model Vibe (at least my 2004) has this "Axle Nut" which must be taken off in order to take the rotor off. Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. *Kit ships within 3 weeks of online order completion! For most of its run, the Canadian Parisienne was nearly mechanically identical to the American Menu. 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. GM / Chevy - Differential IdentificationShop by your differential. Buick, Olds, Pontiac Stock Replacement Rear Axles. Armasteel cranks were commonly used during the 1960s for specific performance applications where additional crank durability was required. A second generation rear end that is put in a first generation Camaro will stick out a half inch more on each side compared to the stock first generation Camaro rear end. Period of manufacture: September 1965 November 1966. Give us a call at 800-216-1632 to get started. 53 Deluxe 88. Pontiac Bolt Settings Chart. the wider housing is not 1" closer to 3/4 . I am trying to find a GM 8.5" 10 bolt rearend for my '68 Camaro. Jeff Smith: When Chevrolet built the first Camaros in 1967, they were already in production of both 10- and 12-bolt rear-end housings. FYI, the 12 point nut size is 30mm. 59-60 Invicta. Rim Width Measure from the inside of the outer lip at the bead seating point to the inner lip. Motive Gear stock performance ring and pinions are excellent replacements for Quiet operation Computer controlled heat treatment. Rear axle widths These dimensions do not include brake drums and are measured from backing plate to backing plate. Front Wheel Size (in): 17 x 8. Excellent condition. Number and size. Does anybody have any ideas how wide the various 8.5" rearends are? Full rated Inflation Press. Dana 44 - JK Rubicon Front Dana 44 - JK Rear Ring Gear Diameter: 8.5" / 216mm Ring Gear Diameter: 8.89" / 226mm Pinion Diameter / Spline: 1.625" / 24 Pinion Diameter / Spline: 1.625" / 24 GM 8.25" IFS - Late Model Full Size Truck GM 8.5" -1970-Present Car, 1977-99 Truck (C-Clip Axles) Ring Gear Diameter: 8.25" Ring Gear Diameter: 8.5" Great condition. 3.08. 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 : The dana pinion stands forward about 2" more than the 9 1/4, the driveshaft will need to be shortened accordingly. Handling. Pontiac Lug Nut Torque Specs. This rear is out of a mid 70's Ford F-150 and the tag decodes this one as an open rear with 31 spline axles and 3:25 gears. You will need to pick up a 12pt 30mm axle nut socket. 5, 7/16 20. An Olds 12 bolt has a smooth cover that is almost perfectly round. NOTES (a) On four road wheels std. Displays PONTIAC bolt patterns, wheel sizes and dimensions by model or view all matching vehicles that will swap or interchange with PONTIAC wheels. The 2004-13 GM W-Platform represents the evolution of the GM mid/full-sized front-wheel-drive car. GU5 - 3.23's Optional auto trans gear ratio. Dimensions will be listed left to right as wb/ft/rt followed by the year, make and model of the vehicle. Approximate rear end widths measured from backing plate to backing plate. The GM 10-bolt is named for the number of bolts on the cover; ring gear diameter is 7 1/2 inches. Size, ply rating, & ply. ; Engine VIN Codes Decodes engine codes used in Vehicle Identification Numbers (VIN's) for cars starting around 1953.; Vehicle History Vehicle History Reports for Approximate rear end widths measured from backing plate to backing plate. The wheels were unique in that the rear ones were offset 16mm due to the rear axle width; the front rims were zero offset. The 1' wider that was stated in paul/chuck 's book may have been miss spoke. Location: Stoughton, WI. 7.5 inch, 8.5 inch, 10.5 inch. Save. Ford 9 Inch Rear End; Fabricated 9 inch Housing; 9 Inch Pro Mod Rear End; (Full Size) 2: 1973-1991: HF9LEG73C10ME: PRST73C1005: PRST73C1010: Blazer (Full Size) 3: 1992-1994: Ultimate Warrior : Join Date: Jul 2005. Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars 48" - 49" 50" - 51" 52" - 53" '71 Colt '72 Cricket '72-75 Datsun Pickup '72-73 Mazda '65 Ram American '74 Valiant '28-40 Ford , '57 - 59 Ford Front. Later '59-up years are wider (unsure about '58). A popular upgrade from the stock 10-bolt setup is to use a 12-bolt. Axle Width Year Model Notes; 56.50: 1974 Maverick 8 Rear-end: 8 Rear-end but Narrower Alternative: 57.00: 1975 Mustang II 8 Rear-end: 8 Rear-end but Narrower Alternative: 57.25: 1957-1959 Ranchero, Station Wagon: Narrowest 9 Housing: 57.25: 1965-1966 Mustang: 58.00: 1964-1965 Falcon: 58.00: 1966-1977 Bronco: 55.5 Bolt Pattern: 58.00: 1966-1977 Bronco: 58.00 PONTIAC Axle Gear Codes. 59-60 LeSabre. Spare Tire Size: P245/45ZR17. 35 Spline Custom Alloy Axles. 1970-1981 Camaro. 800-646-6718 . Visit Cars.com and get the latest information, as well as detailed specs and features. 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. Drive Units Tires. Richmond Gear calls the 57-64 Olds/Pontiac rear a GM 9.3" Axle (the ring gear is 9.3 inches). Our experts will help you find the correct ring and pinion set for your particular application. Everything else is going to require new spring perches to be welded to the housing. Pontiac Rear End Gear Codes Year Model Rear Gear Teeth Count Standard Code Locking Code 1965 GTO 3.08 40/13 WE YE 1965 GTO 3.08 40/13 XE ZE 1965 GTO 3.23 42/13 WF YF 1965 GTO 3.23 42/13 XF ZF 1965 GTO 3.36 37/11 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. Some corrosion on one end, but will work fine. 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. There are many other "10 bolt" axle types, even the original is a "10 bolt". Right-hand drive models were locally assembled in Australia, New Zealand, and South Africa until 1969. The Automobile Manufacturers Association Specifications for the 1967 First Generation Firebird. If you are using ARP bolts, you must use the long run to the rear of full sized cars, trucks and hydraulic clutch lines. THE STRONGER REAR-END REPLACEMENT! Code Location. 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 DANA 41 The 41, which has a ring gear size similar to the Dana 44, came in early CJ-2As. 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. Wallace Racing. Size, ply rating, & ply. You can also use a 1/4" open end wrench to gauge your lines. TORQUE SPECIFICATIONS. 54-56 88. 0. '57 Olds rear end is same width as '57 Pontiac & '57 Chevy, but used coil springs and requires welding on 2" wide leaf spring perches to fit into '55-'57 Chevy. It has been my experience that the 66 up axle is longer. Ford 9 Inch Rear End; Fabricated 9 inch Housing; 9 Inch Pro Mod Rear End; (Full Size) 2: 1973-1991: HF9LEG73C10ME: PRST73C1005: PRST73C1010: Blazer (Full Size) 3: 1992-1994: Dana 44 - JK Rubicon Front Dana 44 - JK Rear Ring Gear Diameter: 8.5" / 216mm Ring Gear Diameter: 8.89" / 226mm Pinion Diameter / Spline: 1.625" / 24 Pinion Diameter / Spline: 1.625" / 24 GM 8.25" IFS - Late Model Full Size Truck GM 8.5" -1970-Present Car, 1977-99 Truck (C-Clip Axles) Ring Gear Diameter: 8.25" Ring Gear Diameter: 8.5" That's a 57 Pontiac. PRODUCTS. Number and size. Stock Pontiac Head Specs ** Also note the combustion chamber volumes shown in the chart are based on various sources. Great condition. Identified by casting number & number of cover bolts. This is a large bearing rearend and the difference between the backing plate and the axle-housing flange is 2 3/8" on each side. Handling. This helps to lubricate the differential bearings. Rear Main Cap. also note on the A4's (auto's) shifter console if the gear selector for 1 is missing. Buick and Pontiac 10-bolt rear ends used flange-retained axles instead of the C-clip retained axles like those on Chevrolet rears. Engine Oil: 95 ft-lbs. 5.57 *. Toyota torque specifications. 3.23. GM / Chevy - Differential IdentificationShop by your differential. Always have your chamber volume measured, especially if you will be pushing the limit of an acceptable compression ratio for your combo. Lock Parts Chart 1935 - 1954: 354-356: Deluxe Molding 1949 - 1954: 357-373: Color Combinations 1949 - 1956 (page 374 blank) 375-378: 1969. You can typically find your RPO code on driver side door panel or glove box. Always use the correct lug nut torque. According to Nasty Z28, the GM/Chevrolet 12-bolt rear end was manufactured from 1965 through 1971. The 8.75 (8 3/4) rear end LOADS FROM THE FRONT and IS THE ONLY REAR END THAT DOESNT HAVE A REAR COVER. Getting a rear axle to be free of noise on acceleration and coast takes skill in it setting up. Wheel-Size.com is a Wheel Guide and catalogue. General Motors rear end differentials are referred to by the diameter of the ring gear, i.e. 7.5 inch, 8.5 inch, 10.5 inch. Our experts will help you find the correct ring and pinion set for your particular application. One important distinction is that the 71-81 Camaro axle is what's called an 8.5" 10-bolt. Fits: 1997-2004 Chevrolet Corvette. Fit Ht & sedan. Richmond Gear calls the 57-64 Olds/Pontiac rear a Picture is from parts book. 1962 Full Size Pontiac Rear Bumper Brackets Set $75. The smaller size is 3/16"/4.75mm brake line, CNF-3; and the larger size is 1/4", CNF-4. I was able to get mine at 800-646-6718 . Overall Width: 72.5 "Rear Head Room: 37.3 "Rear Leg Room: 37.1 "Wheelbase: 109.8 "Driver Seat. With 0 to 100 km/h (62mph) in 7.6 seconds, a maximum top speed of 124 mph (200 km/h), a curb weight of 3186 lbs (1445 kgs), the Firebird Trans Am 1982 5.0 V8 HO 5-speed has a naturally-aspirated V 8 cylinder engine, Petrol motor, with the engine code GM Chevrolet Small-Block V-8 305 LG9. For more info on the 8.5" use this link: 8.5" 10 bolt PY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street > 66 GTO Rear End Width Reply Thread Tools: Display Modes #1 10-26-2009, 10:17 PM old66tiger. If a rear is not set up perfectly, you will have problems. thank you mark. The size and diameter of the assembly might be a little different. GU2 - 2.73's Standard auto trans gear ratio. FT-LBS (N-m) AXLE SPINDLE NUT. The spiders are the same as a 44's, but the carrier and gears aren't. PRODUCTS. 0-60 mph : 6.2 seconds. For instance, changing from a 2.41:1 ratio to a 3.73:1 ratio will provide a rear wheel torque increase of 55%. 5.38 *. 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 57 Golden Rocket 88. The backing plate to backing plate width is 64 7/8". Width: Year: Model: 57.25: 1957-1959: Ford, Ranchero, Station Wagon: 57.25: 1965-1966: Mustang: 58.00: 1966-1977: Bronco: 58.00: 1964-1965: Falcon: 58.00: 1977-1981: Granada/Versailles: 58.50: 1977-1981: Versailles: 60.00: 1958-1960: Edsel: 61.00: 1964-1971: Ford Full Size: 61.00: 1949-1951: Mercury: 61.25: 1957-1972: Ford F-100 Pickup: 61.25: 1960 Ford's biggest axle comes with semi-floating shafts in 1983-and-newer F-250s, and as a full-floater in F-250HDs and F-350s. 24 (Full Load) 24 (Reduced Load) Rear. The 35C version is found in the rear of Cherokees and Comanches. 1967-1969 : Rear of left hand (driver) tube,about 3" from carrier and stamped on left Potential donor cars: The 71-81 Camaro rear axles are 1" wider than first gens, which is why you can't just grab one and throw it in your first gen. Bias. ('55-'56 Pontiac rear end will also bolt in, but is different design than stronger '57-'64 units). It has the 4.75" bolt pattern, and ratios are usually 3.55-3.73, but sometimes you'll find a 3.36. These are bread and butter vehicles for every shop. find the 1/2 ton size yoke on a dana 60. Bolts or Parts: Lube or Sealer: Torque to: Main Caps. ZF reg-duty / 4F med-duty 4-pinion. Location: Stoughton, WI. Detailed specs and features for the Used 2004 Pontiac GTO including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more. General Motors made its performance vehicles using many of the same components. Even the setup for the ring and pinion-to-ring gear mesh is absolutely critical. 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 Look at the RPO codes. But 68-79 Novas had the exact same rearend dimensions as first gen Camaros. Strange Engineering Bolt-In Rear End Application Guide for Ford, GM and Mopar.