detroit tru-trac vs. richmond powertrax

[69camarokid]

looking into a streetable posi rear end for my 69. Im putting down 420 horses so i dont need some crazy always locked racing diff. My car is a daily driver with some power that may occassionally see the strip. Im just tired of first and second gear being nothing but smoke.

Which would you guys recommend? is anyone running either of these!?

[Vegas69]

True trac works great for me.

[big gear head]

The Eaton Posi is the best street/strip differential for GM cars. They are smooth and work very well. If you want to auto cross or road race then the Trutrac might be better for you. The Eaton works better for burnouts. Stay away from the No-Slip. The Lock Right works well, but you might not like the noise and jerking.

[chicane67]

Eaton or True-Trac... as it has been stated.