Decel vibration between 2100-2500 RPM is the issue with my 3.73 frpp gears. Not sure if it's caused by an incorrect bearing or if it's caused by the stock driveshaft. I figure if it was the wrong bearing, it would always be vibrating and causing more noise. I made the mistake of trusting an AM rep when he said my 2011 didn't need the 2010+ bearing in addition to their standard install kit that's already listed 2010+ so now I'm not sure what it could be.
Current Mods: 19x8.5 Charcoal AMR Rims, Bama Tune 93H, Airaid CAI, FRPP Sport Axle Backs, FRPP 3.73 gears, Boss/CS/GT500 Rear Diffuser, GT500 Rear Spoiler, GT500 Mud Guards, Raxiom Reverse/License LED Lights, OEM Take off Black Charcoal Leather, GT500 Steering Wheel, Auto Headlights, Chrome 3.7 Badges, Quarter Window Louvers, Dark Matter Tint
Future Mods: Matte black GT500 Stripe, Black Billet Grilles, Stillen Front Chin Spoiler, Roush Side Splitters, Painted Mirror Caps