I've also heard of swapping in a diff from a Ford Econoline, which I assume has many more ratio choices??
That would be the entire rear axle vs just the gears.

Last edited by JiMerit Boltr#43; 02/09/2017 4:53 PM.

It's easier to get forgiveness than permission!
1946 1/2-Ton Chevy
1953 Chevy 3/4-ton Factory Stakebed