Re: Ring & Pinion Questions!

Posted by Craig Hendrickson On 2014/3/15 10:20:31

From his avatar, it looks like a 56 Pat, so 64Avanti is correct on the Dana parts. I also agree on the 3.08:1 gear.

To be more precise, here are the rpms at 60MPH with a 27IN tire and locked up converter:

3.54:1 is 2643RPM
3.08:1 is 2300RPM
2.87:1 is 2142RPM

So the RPM difference between 3.54 and 2.87 is 500 RPM and the 3.08 splits the difference at about 250RPM either way.

Craig