Everyone's opinion for rear end to go with?

D60 for sure over the 8 3/4. Wouldn’t go over 450 hp/torque with a stock 8 3/4 especially if using slicks on a glued track. 8 1/4 for a stock engine street driver would be ok.

another option would be a 9 1/4, readily available out of a junkyard pickup. My local yard priced me one about a year ago at $350 inspected and warranted. This will hold up to that kind of hp/torque with slicks and a glued track. Plus it is somewhat lighter than a d60.