Depends on what you have done to the trans, but as long as you keep it on street tires and on the street (where you have no traction) you will probably be fine. The 8 3/4 will also probably be fine on street tires, on the street. The problem is when you put on sticky tires (drag radials) and go to a prepped race track....I have seen too many street cars try to go racing and blowup rears/transmissions lately....Don't really want to see more.