For 1990-2009 cars

Application | GM SPO Group Number
--- | ---
Rear Axle Tie Rod | 5.415
Rear Axle Tie Rod Bolt | 5.418
Rear Shock Absorber | 7.345
Rear Shock Absorber Bolt | 7.347
Rear Shock Absorber Nut | 7.347
Rear Shock Absorber Upper Insulator | 7.388
Rear Shock Absorber Washer | 7.347
Rear Spring | 7.503
Rear Spring Seat | 7.518
Rear Suspension Lower Control Arm | 5.382
Rear Suspension Lower Control Arm Bolt | 5.383
Rear Suspension Upper Control Arm | 5.382
Rear Suspension Upper Control Arm Bolt | 5.383
Spring Stop | 7.422