Haven't had a ladder bar car since the early 70's. Found an A body that has an 8pt, 8 3/4 rear, tubbed and ladder bars. I have a 440 in the machine shop that should be making close to 550- 600 HP. The car has 13" slicks. Also a2.74 1st gear. I know the 8.75 won't last long term but more important is whether the ladder bars will handle the power.