I've never had a two-speed axle, so I'm guessing that the lower ratio is extra low and the upper ration is standard?

I would like to lower my RPM at freeway speed, and have access to a two speed axle on the cheap.

The axle is in a larger truck, so not sure how well it would fit.


1957 Chevy 3600

At these prices I want my gas 100 octane, leaded, and my windshield washed!