In a message dated 12/11/98 10:50:53 PM EST, bk54@erols.com writes:
<< Andy Mace wrote,
>> To be sure, though, raise the rear of the car and place it on stands.
Temporarily stop one rear wheel from moving (have someone hold it, or
tighten the brake adjuster). Slowly turn the free wheel through one
revolution while someone counts the revolutions of the driveshaft at the
input flange of the rear axle (you could chalk or otherwise mark the
flange to make the counting easier). If the flange/driveshaft turns just
under four times, it's 3.7; if just over four times, it's 4.1. <<
Actually, with the opposite wheel immobilized the drive shaft will spin
twice as fast. 7.4 turns if the axle ratio is 3.7, or 8.2 if it's a 4.1.
>>
Actually I think Andy is right here. I tried this on my car without stopping
one wheel and got about half the expected ratio. 1 turn of the roadwheel was
about 1.9 turns of the prop shaft. Scratched my head and moved on.
Ken Nuelle
58 TR3A
62 TR3B
64 TR4
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