I had a 67 camaero with 454 ,400th 3500 stall, and an 8.2 posi with 3.73 gears. I ran it with ET drags 10.5 on 8" rallies.
it only ran mid 12's but I never had a problem with the rearend.
as far as I know the rear is still in the car, the guy street races with drag radails.
before the BB its pushed by a biult 327 /4 speed about a year