Your favorite rear end/final drive ratio and why?

For a street car? With an automatic 4.10’s. With a stick 4.56’s.

Ignore the tach. These engines were never designed to lumber along at 2200 RPM like a late model engine.


Back in the 1970’s my Dad borrowed my 340 (4 speed) duster and thought it was a three speed. Ain’t got no time for first gear. Lol