Mine is at the dealer now and if was the tail shift bearing thing. I have a sept 2010 build car as well. I have also heard that some people have whine problems from the 3.73 reared.
I'm on the stock 3.31 rear end. What are they doing work wise? And what did you tell them when you brought it in?
2011 GT Premium 401a
UPR Oil Seperator | Borla S-Type Axle-backs | Bilstein Struts/shocks | GT500 Strut mounts | BMR Springs | BMR UCA | BMR LCA's w/ relocation brackets | BMR Panhard bar | MGW Race Spec | Dark Stainless SVE Drifts w/ Nitto 555's | JLT CAI | Lethal Performance 3" Offroad X-pipe | Tuned by Kevin @ Wicked Motorsports | 394whp/389ft lbs SAE | 12.74 @ 114 mph