Brewmiser

I too have changed the rear gears. First we'll need to see what diff you have. I had a Dana 44 with stock 3.93 gears (at 65 she was screaming)

I contacted precision gears and picked up a ring and pinion set for the Dana and dropped her down to 3.23 (made a world of difference)

http://www.precisiongear.com/

Jake Groby

1960 GMC 305A V-6 Gallery Page
Remember, the government cannot give --anything to anyone --that they have not first taken away from someone else.
BUY AMERICAN http://www.stillmadeinusa.com/index.html