Paul, set the axle on a pair of jackstands. Turn one of the brake drums
one complete revolution and count the number of revolutions that the
driveshaft yoke turns. If it turns, say, 3-1/2 times, you have
approximately 3.50/1 rear end gear ratio. IMHO, any used rear end
warrants at least pulling the cover for inspection. I bought a 10 bolt
GM posi and found chipped gear teeth on the pinion. I got the seller to
drop the price to a ridiculously cheap amount and rebuilt the rear end
with new Richmond gears.
Wally
>
> I'd also like to find out what gear ratio I have (I don't particularly
> want to tear it open although that might not be a bad idea to make sure
> the gears all look good). Is there some way to determine this without
> putting tires and wheels on it?
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