WARNING: This page is about a different car, the 2002 Pontiac Sunfire and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
J 21474-18
3/8 Inch Nut
J 21474-19
3/8 Inch Bolt
J 29376-A
Rear Control Arm Bushing Service Set
J 29376-95
Rear Control Arm Bushing Adapter
See Figure and Figure
under SPECIAL TOOLS & EQUIPMENT.