A body 8.75 dimensions needed

Cracked back

What degree do you set them at? I wasnt understanding your reply. I understand 5 degrees up if its on a 0/90 degree baseline. On mine the perches look to be 90 degrees out from the center chunk mating flange. So would i be correct to assume this is 5 degrees down from the stock angle.

Is the angle i have it set at 0/90, is the base angle from there up or down?

Do you think i will run into any vibration or angle problems. Never did this before, went on advice of old dragracer. I believe at 0/90 you dont have to worry about spring windup binding the driveshaft assembly. The axle housing would have to twist upward on hard accelleration from spring windup to get to stock +5 degrees then your adjustable pinion snubber comes into play to keep it from going any farther up.

Matt