drive line angles

[XJCHRIS]

I have a R.E. 4.5 lift, JB HD SYE, CV drive shaft, D-44 rear,33's. I have a vibration at high speed. About 65mph and up. It gets worse the faster you go after that. I am suspect of the drive shaft angles. What are the angles between the yokes supposed to be? I have not checked mine yet.

 

[RCP Phx]

You want your pinion to be about 1-2* less than the driveshaft!