QA1 (HAL) Shocks - 1993-2002 Camaro and Firebird - Rear shocks - single adjustable REAR - GM F-body cars' chassis design uses a torque arm suspension differing them from the rest of the crowd. That's why QA1 shocks has designed a superior rear shock specifically for this series chassis. The GEN-F rear shock is engineered to handle it all - from drag and road racing to everyday street use. Offered in both single or double adjustable as well as Drag Race specific valving.