Lift install

UPDATED!!!!!
From my engineer:
It may do it all the time, or it may be when the driveshaft hit's a resonant frequency. A lot of variables.
Last edited by Rancho Shocks; Oct 18, 2013 at 01:17 PM.
So does this mean the driveshaft spins all the time even if it is in 2wd not AWD?


