evening....I am waiting for my SYE and driveshaft to arrive(thanks Dirk-DPG & Terry at High Angle) and need some clarification on the extras I already have. Currently I am running a 5.5" R.E. lift with the t-case dropkit and 4* shims on the rear axle. After searching the forum I am still not sure if the drop kit and shims need to come off after the SYE install. I have no or very little driveline vibes currently so I am fairly dialed in as far as DS/pinion angles go. Any help appreciated.....