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#1 |
Registered User
Join Date: Sep 2002
Location: DFW Texas
Posts: 2,270
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12 bolt differences- car and truck
I'd like to know the differences between the car and truck 12 bolt rearend. Thanks for any help.
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#2 |
Active Member
Join Date: Oct 2006
Location: Ohio
Posts: 1,643
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Re: 12 bolt differences- car and truck
Pinion gear, bearing dia, width, panhard bar location & dia, center section dia
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1968 SWB 454 + .040, 490HP x 540 FT pounds of Torque 10-1 Kb Forged pistons, recon rods w/ ARP wave loc bolts 781 heads Ported with 2.19/1.88 SSTvalves Lunati 60204 cam, Micro Trol lifters, Ported Edelbrock Performer Rpm manifold armor coated, Pertronix Triple Strike Ignition Holley 770 Street Avenger carb,Headers armor coated Built by Watson Ruppel Performance in Sarahsville Ohio. Hardshift Tranny Built Turbo 350,TSI 10" 3000 stall 12 Bolt Eaton Posi 4.10 Richmond Gears moser axles ![]() 18.5" x 31" Hoosier Pro Street Radials ![]() ET Classic 5 Wheels - polished Power Steering, Power Brakes,Disc Brakes,Tach & Gauge Dash, Tilt,Factory Air (gone) Custom Paint & Body Work Special thanks to my wife, my son and my money tree ![]() |
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#3 |
Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
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Re: 12 bolt differences- car and truck
the 12 bolt car rear end is made thicker and stronger in just about all areas in the gear housing. the sizes of the caps are different. i am sure someone here thats a rearend specialist can point out all the little differences.
the car rearend was made to handle H.P. from the muscle cars. some had 400 hp and more stock. these old trucks were made for hauling and towing. thus no need for the improved housing.. if you look for after market high performance parts you will soon find that the listing for trucks are on the short side.. i hope someone will chime in here to add to the list.. |
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#4 |
Registered User
Join Date: Dec 2000
Location: Ringtown,PA
Posts: 555
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Re: 12 bolt differences- car and truck
pretty much everything is different, however alot of people are quick to swap in a different rear cuz they built up the motor a little bit. i say keep it, you can buy better axles and carriers or a spool like i did and im running in the high 11's with a 4 speed and slicks. they will hold some decent power, especially on the street with radials. Dev.
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68 chevy 406 small block, budget drag racer, new best e.t 11.91 @112 67 nova numbers matching 327 4 speed 13.6 @ 102mph 70 longhorn c-30 402/4 speed 70 c-10 swb 402, muncie 4 speed 94 s-10 350/th350 3:73 posi 71 c-20 402/th400 towrig for racetruck. 72 4wd lifted on 35's 72 350/3 speed winter beater |
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