Best bet on rear suspension?

It does absolutley take more power to turn it over,and it is definately heavier,but then again you won't have to carry around a set of those plastic balls for people to know it's got the nads.I converted a 68 roadrunner from 8.75 with 4.10's to dana 60 with 4.10's and it was a noticeable diffrence(robbed horsepower) but then again a few more revs and dump the clutch(no fear of breaking it) and you can get the ends off a truck 8.75 rear to put on the dana and the mosier axels with bearings are a deal,not to mention a posi for a dana is still plentiful if you look around.the 8.75 is virtually indestructable on the other hand.so you got some choices good luck.the dana will make a statement even if you have a slant six!!!!!