Quote:
Originally Posted by Omicron
How does one tell what gear ratio, and if it's positraction (besides just one tire spinning  ), on a factory rear end of my '71 CS?
Secondly, if it's not posi and I change it, will it be strong enough to handle 650 BHP? If not, what's a good source for stronger internals?
Thanks in advance! |
Jack up the rear of the car. With the trans in park, try spinning one rear tire by hand. If the other tire turns in the opposite direction, it's an open diff. If you can't turn the tire, it's a posi.