Rearend put in

Daves67Cuda said
the 3000-3200#(P3412002/03) ones. Thanks, Dave
Thems what you want. The other ones are for very light cars. The idea is with slicks and a big block for those springs.
Your car is heavier than 3200 I bet, but the weight savings from aftermarket parts probably has you close.
Those are what I would use.