Someone helped me out a little but since I hijacked the thread I thought I better start a new one. I'm still learning all about my "new" 68 coupe and while looking things over saw that my rear end had two dimples on the aft end of the housing. So its a mid 50's to mid 60's I'm told. Is that a good rear end for a 302 making perhaps 250-275hp? (Could be more but I don't want to make a stupid guess.) How can I find out the gearing? Thanks, and I'm learning a hell of a lot just by going through these posts, whether they pertain to my ride or not. There is a lot of knowledge on tap here. Now if we could only harness it for good rather than evil!