PDF Pontiac Rear End Decoder - thepartsplaceinc.com also note on the A4's (auto's) shifter console if the gear selector for 1 is missing. 1940 engine numbers run 2697268 through 3665902. You are using an out of date browser. 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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. 1982-1997. 0000008567 00000 n I placed the order with Speedway motors in late July for my rear end housing and Currie axles. '70's Ford Grenada The 78-88 mid size GM cars use a 7.5" 10 bolt, which is about 58/5" wide. Jeff Smith: When Chevrolet built the first Camaros in 1967, they were already in production of both 10- and 12-bolt rear-end housings. 1967 Pontiac GTO - Wheel & Tire Sizes, PCD, Offset and Rims specs | Wheel-Size.com. Registered: 16 years ago. The power is transmitted to the road by the rear . Outside of flange to outside 54.25" 66 up are wider. 71-76 Full Size Cars " My 69 gto convert., purchased within the last year has a painful 2.56 rear gear. Valves. I've read enough times that '64/'65 are 54.25" and '66's are an inch wider that I believe it. '55 -57 Chevrolet, 68-69 Fair lane 6 or 8 Originally posted by SUNNYD @Mar 22 2007, 10:23 PM~7534589. The high-volume production runs of Ford-9 inch components allow them to be relatively inexpensive. 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. 66-69 axle does not include 64 65 . Ironically the heavy-duty nature of the 9.3 worked against it and played a part in its demise. 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 : Many Ford 9-inch parts are made offshore; they have smaller bearings and smaller diameter gears requiring less material. list of rear ends and their dimensions to help narrow the search for a possible 1965 Pontiac Tempest LeMans Specifications - Conceptcarz.com Cylinders. compensate for drums as follows: 4" - Information provided by:Joe GarciaThe Resto Rod Shop. Is a pontiac center section as olds rear ends of that era? Mavericks 8", All '75-77 6's & 8's Advance Design Trucks seem to be using rear ends with widths ranging from 58"- 62". If in doubt, consult one of our differential experts at (800)510-0950! Why not a Ford? How to Build the Right Period-Correct Pontiac/Olds Rearend - MotorTrend 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. It's not to the same level as a concours-correct restoration; no judge will deduct points for an incorrect paint code. jack39rdstr # 169783 04/02/10 02:03 PM. The other drawback is that you can only check for clearance at the height the jack stands are set to. The most common GM unit for the 1982 to 1992 Camaro is the Saginaw style 10 bolt Chevy differential. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass. Building a gasser is a satisfying way to blast down the track, turn some heads, and salute the good old days of racing. 0000006068 00000 n Six-cylinder truck engine block and head casting numbers. stock from flange to flange it is 60 ". 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. Here you can see the three white paint splotches identifying the pinion size and the gears. Find your GMC/Chevy vehicle in the chart below and click on the illustration for a larger view. Professional technical support is available . 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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. Other changes were made to the limited-slip carrier, but strength was not adversely affected. A: Ford 9-inch is like the small-block Chevy of rearends. Contributing information were Bob Welch, J While it still may take an investment in time to locate a good third-member core and housing for your gasser project, these components are still relatively plentiful and quite affordable. 4.24 out of 5 stars. I just measured my 60' Pontiac and it is the same as my 62' Pontiac. May 7, 2009. As a result, many tribute cars and gasser-inspired builds had to stray from correctness. However, the 9.3-inch differential was saved from obsolescence by a Texas-based company called Fabcraft Metalworks and its owner, Brad Duerst. Chrysler sent out the last of its 8.75-inch rearends in the early '70s. ends with widths ranging from 58"- 62". 2/4-door sedan body type. '62 Buick Skylark, '67 Chevrolet Six Floor jack permits you to raise and lower wheels to check for clearance. pontiac rear end width chart - nftcollectionlab.com 0000007740 00000 n Hot Rod Blueprints, Drawings and Tech Tips For The Hot Rod Enthusiast!. Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars . 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. Suspension Measurements - Fred's Pontiac Information getting back to the differential, why bill didn't cover 1956 i don't know, might have just been a typo or overlooked. You bring the gumption. Its narrow front end with a plastic, wrapped-around bumper featured fog lights as an option. Good luck. The1971-'72 Buick GS/Skylark and Olds Cutlass A-body 8.5 10 bolt did not have C-clip axles. 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. 3.21 to 3.92. . Camaro Differentials and Driveline - CamaroTech.com The P/O rearend and parts were getting harder to find and there were more Ford 9-inchers being made every day. pontiac rear end decoder year ratio open posi model notes: . Mickey Thompson even produced aftermarket Olds and Pontiac magnesium gear cases that were frequently used in dragsters. I'm not sure of the The housing came in a couple of weeks but without the axles. Good third-member cores are also relatively easy to come by, as many are now being saved from recyclers by fellow enthusiasts. The End of an Era. 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 1' wider that was stated in paul/chuck 's book may have been miss spoke. 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. 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. '72 Cougar This information will change as further information and corrections become available. "+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. Rear Suspension Width (Flange to Flange), Donor Vehicles Front and Rear Pontiac Rear End Gear Codes - Ron's Pontiac Page * Pinion #s GM 40 13 == 67 K D. 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. used a 3.21 Dana 44 used a standard chevy 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. 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. In head/2 per cylinder. 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. Correct two piece design posi unit, exact for only 67 - 69 Firebird 10 bolt 8.2 rears. 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. '73 Ventura, '65 Ram American 6 lug rear end 12 bolt Coil spring set up Possible gear ratio's 3.70. So why did the Ford 9-inch become the premier differential of modern day hot rodding? Look at the RPO codes. Items GM quit making the 9.3-inch in 1964. 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 Its role in drag racing was limited to primarily Stock, Super Stock, and Factory Experimental Fords. The intake valve size increased to 2.11" and the exhaust valve increased to 1.77"in size from the previous model. . For a better experience, please enable JavaScript in your browser before proceeding. find the 1/2 ton size yoke on a dana 60. The 10-bolt was used in all the low performance applications. '72-75 Datsun Pickup birdfire.com : 67-81 rear end - Free 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. According to published lists, the 55-64 Chevrolet rear end width is 60" from wheel mount surface to wheel mount surface. Pontiac V8 Engine History: 1955-1981 For instance, if both the engine and transmission deliver up to 100 ft./lbs. A: Extremely strong! 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. . to change without notice. Identified by casting number & number of cover bolts. It is a little better than the Camaro 8.2 10 bolt. 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. Click the above picture to view full size. Pontiac Fiero GT Technical Specs, Fuel Consumption, Dimensions GU6 - 3.42's Standard manual trans gear ratio. 62" 64-77 Chevelle, 73-76 Torino, 89