^ If you buy the right kit, it should come with all bearings and shims needed. Provided that your gears haven't developed a bad wear pattern (thus causing whine), you should be all set and out the door for way less $ than a full rebuild + new gear setup.
2013 Grabber Blue V6 Premium auto | MCA | Performance Package | BMR/Shelby Panhard Bar | Steeda Rear End Links | BMR Rear LCAs | JLT Oil Sep | FRPP Diff Cover | DSS Aluminum Shaft | Adaptive Shift Delete | Cervini Type 4 Ram Air Hood
Order: 10/13/12 | VIN: 10/19/12 | Sticker: 11/3/12 | Build: 11/30/12 | Mine: 12/22/12!
Restoration project back on the road: my dad's 1969 Camaro SS 350