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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? 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. Drag Racing 101 ~ Everything You Need to Know! So why did the Ford 9-inch become the premier differential of modern day hot rodding? '55 -57 Chevrolet, 68-69 Fair lane 6 or 8 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. compensate for drums as follows: 4" - Correct two piece design posi unit, exact for only 67 - 69 Firebird 10 bolt 8.2 rears. Floor jack permits you to raise and lower wheels to check for clearance. '72 Cricket I'm not sure of the Jeff Smith: When Chevrolet built the first Camaros in 1967, they were already in production of both 10- and 12-bolt rear-end housings. Understanding Aluminum Heads and Spark Plugs, OK Go Needing/Getting ~ Its All In The Timing, An Online Magazine for DIY Hot Rod Builders. There is also a yellow stamp 10 22 which is the . '70 Nova 66-69 axle does not include 64 65 . The power is transmitted to the road by the rear . A: Ford 9-inch is like the small-block Chevy of rearends. some sources state that the 67 and latter are wider. Click the above picture to view full size. 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. On early street rods it wasn't unusual for the rear of the car to be jacked up so wider than stock tires could protrude several inches past the fenders, but then styles changed and the need for a narrower rearend that was reasonably strong led many hot rodders to the '57 Ford 9-inch, particularly those under wagons and Rancheros as they were the narrowest. GM 10-bolt rear ends have four basic ratio choices: 2.73, 3.08, 3.42, and 3.73 . '69 Javelin Six , '70 dodge RWD (rear-wheel drive), automatic 4-speed gearbox. <<3d7f7a4e8421a74f9b85ec848848f3a1>]>> Very hard to find set, being as this is version is not being reproduced. 6 lug rear end 12 bolt Coil spring set up Possible gear ratio's 3.70. 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC 0000007740 00000 n 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. This number may be on the top, bottom, or either side of the axle shaft. There have been non C-clip rearends found in Chevelle wagons, and some El Caminos through at least 1974. These smaller volumes and domestic content result in slightly higher prices. The following information is provided to help you identify the differential you are working on. For instance, if both the engine and transmission deliver up to 100 ft./lbs. Casting # Year: Body: Size: Notes: 2070051: 1960 - 71: A . 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 . 40/13. Privacy Policy. All correct GM codes and part numbers. 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. You are using an out of date browser. %twE_( H@v7H f)p* 0KO|O n>+ I came up with a cheap simple method to confirm the results of the measurement taken with the loose wheels. jack39rdstr # 169783 04/02/10 02:03 PM. The now famous Ford 9-inch, with it's unique, straddle mounted pinion, offered great strength for its weight, but even the heavy-duty nodular-iron version suffered from weaknesses that the 9.3-inch did not. 70-81 4wd 6 lug reared 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: . The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. 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. 71-76 Full Size Cars " '67 Mustang 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. Items I'm not sure of the Task Force width ranges at this time. 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. Once I had determined the desired width with the loose wheels and tape measure I constructed a wood rear end out of a 2x4. Valves. Rear-end track width measurements of classic American cars including Chevrolet, Ford, and Mopar vehicle rear axle widths. Q: What cars did they originally come in? 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. Its role in drag racing was limited to primarily Stock, Super Stock, and Factory Experimental Fords. For the do-it-yourselfer, Fabcraft offers a full-color manual with excellent tech info on the differential. I ordering the axles from Bears Performance who kept thier promise of delivery in about a week. 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. trailer Factory Width. '69 Dodge Van, '71 Torino For a better experience, please enable JavaScript in your browser before proceeding. . But it's been so long I can't be certain. The correct width for 59' & 60' is 63-1/4" I believe. cars 6" - 8" for large cars, '71 Colt '71 - 72 Pinto Advance Design Trucks seem to be using rear ends with widths ranging from 58"- 62". S10. Plywood pieces work well for shims. hi don, there is no major difference in the pontiac differential from 1949 to 1956 other than rear brake related parts. 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. some Chevy's Dana 44 or Dana 60 with leaf springs 6 lug, Gear ratio's Interest in vintage drag racing is now approaching a rapid boil. So what we are left with is this: A fully capable, period-correct, brute of a differential with complete aftermarket support. Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale. Re: Rear end interchangability 1965 to 1967 IMPAL. 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. Part Number: YGA-21289. "Stovebolt" Specifications. 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 Your Nova should be the same as 67-69. How to cut your Ford F100 long bed to short bed in a weekend DIY project ~ Two-Part video details cutting frame and bed. The dana pinion stands forward about 2" more than the 9 1/4, the driveshaft will need to be shortened accordingly. 0000004229 00000 n 71- Newer 2wd trucks use a 5 on 5 lug pattern The current axle needs to be measured to verify width, because it plays an important part in determining what rim backspacing is necessary. 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. 1310 yoke, Dana 60 used the heavy duty yoke which takes the larger 1350 yoke. It is a little better than the Camaro 8.2 10 bolt. 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. Look at the RPO codes. Outside of flange to outside 54.25" 66 up are wider. (Rear Wheel Drive) +20 offset. 18 0 obj<> endobj Vehicles with Similar . You bring the gumption. 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. 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. 1/4 Mile : 13.1 seconds. 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. 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. Grand Prix. while a folding bench was standard for the rear passengers. There's absolutely no excuse to use the wrong differential in your gasser. Many aftermarket options exist with all of the appropriate mount points. Calculating the torque multiplication that your axle gears provide is quite easy. Here you can see the three white paint splotches identifying the pinion size and the gears. The final drive ratio is identified with 2 or 3 letters codes. Buick/Olds/Pontiac axles are typically retained with bearings. Will only work with bolt in style axles. '70 Duster , '71-77 Maverick
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