Whats the correct pinion angle?

I'm settin up my 4 link...whats the right pinion angle? I'm thinkin 6 degrees..that sound right?

i dont think 6 degrees is correct??? ive always heard 1 to 4 degrees

measure the degree of the trans at ride height. should be on the negative slope on a degree wheel( normally -2 or -3 degrees) and rear pinoion should be on the positive slope(+2/+3) degrees to match the trans at ride height.

First of all, what vehicle is this for? What is the driveshaft setup? One Shaft? Two? Regular U-Joints? CV Joints?

0-3 I've always been told

up or down?