Thanks, I put it in that way. I ran across a couple site with some good formulas and information on sorting out problems with gears and ratios. Please just delete if I shouldn't post links.

https://speedometercablesusa.com/index.html

https://www.differentials.com/gm-axle-ratio-identification-codes/

Last edited by MickeyP; 05/16/2024 6:48 PM.

1956 3100 three speed 6 cyl. Stock with a few upgrades.