Couple of questions...

I have a 72 Duster with an 8.75 rearend w/suregrip. What brand of ring and pinion would you guys recommend because the one I have looks like it needs to be replaced. Also, what viscosity of gear oil should I use.

This car is a nice street machine and don't really plan on taking it back to the track...bad **** happened the one time I went. Another story for another time.

Thanks,
B