I'm at the 4x4 shop and I got a rubicon express driveshaft installed and I drove off and now I have bad vibrations that Ive never had with the stock ds. The mechanic said I might have to get adjustable control arms!? Is this true or they just trying to get me to spend more money????!!

 

if you installed a rear drive shaft, it is REQUIRED that you install rear upper control arms in order to set your pinion. without it, you will have vibes - there is no "might" about it.

 

Ok thanks wol. You can never be to sure about mechanics now a days...