Here is a question and food for thought. I read an artical strictly for mopar pinion angle and it states mopar factory at the tranny is set at 0 degree and rear should be 3 to 4 degree down. I get that and understand. I have tranny down at 2.4 degrees and no way can i tilt the tranny up any just no tunnel room. So here is my thought. I had it with 2 degree shims on the front side and if i slipped the clutch slowly it some what worked. How about i use a set of 4 degree shims. I had 1.5 degree down using the 2 so i figure the 4 should give me about 3.5 down . What do you think????