Quote:
Originally Posted by OlBrenner
not that i know of. Just jack the rear up and put the car in neutral, spin the drive shaft by hand one turn and count how many times your rear tires rotate, that's your number.
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Actually this is not correct. the drive shaft turns more times per one revolution of the wheel. If it is a 288 that means the rear wheels will turn togeter one time per 2.88 turns of the driveshaft.
Now if you jack up one wheel and just turn one wheel while the other sits on the ground and count the driveshaft's movement you will need to multiply by two to get the correct ratio. Turn the wheel once and count the ds turns and multiply by two.
Tom W
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.
[SIGPIC]
..I also have a 427 Cobra replica with an aluminum chassis.