So here is the deal... after Krieger completed the TSB (new clutch, flywheel, and synchro's), there was this strange vibration. They ordered a new DS and flange for the tranny (the flange took a month and a half to get here, I might add), and they just put them in this Monday. It didn't fix the problem. The following day the tech adjusted the pinion angle and the vibration went away.
SO, no vibration, everything shifts fine, we're good. BUT, after getting it back and driving it on the freeway, I have a "clunk" from the rear suspension after I hit a bump. This was obviously generated from the pinion angle being changed.
My question is... any idea where the clunk is coming from, and how an adjustment could be made on the pinion angle without adjustable UCAs??
This is on the GT500 (2008).