Pivot Bushing Replacement

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1990 GMC S15 Pickup, 1990 GMC S15 Jimmy, 1990 GMC Pickup, 1990 GMC Cab & Chassis, and 1990 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.

Using a blunt chisel, drive front bushing flare down even with rubber of bushing. Install control arm bushing service set.
On "S" Series, set includes Receiver (J-21474-5 ), Nut (J-21474-18 ), Bolt (J-21474-19 ), Spacer (J-22474-23 and J-22222-5 ). On all models, press front bushing from control arm. See Fig 1 .

Fig 1: Removing Lower Control Arm Front Bushing
Courtesy of GENERAL MOTORS CORP.
To install front bushing, assemble control arm bushing service set.
On "S" Series, use Washer (J-21474-8 ) with removal components to install new bushing. Assemble as for removal. See Fig 1 . Position new bushing in control arm bore. Press bushing into bore.
Installed front bushings must be flared. On "S" Series, install Flaring Die (J-21474-2 ), Spacer (J-21474-12 ), Installer (J-21474-13 ) and Nut (J-21474-18 ). See Fig 2 . On all models, turn nut on flaring component until bushing is flared approximately 45 degrees. Remove bushing flaring die and components.

Fig 2: Flaring Lower Control Arm Front Bushing
Courtesy of GENERAL MOTORS CORP.
To remove rear pivot shaft bushing, install Receiver (J-21474-5 ), Remover (J-21474-8 ), Spacer (J-21474-12 ), Nut (J-21474-18 ), Bolt (J-21474-19 ). Press bushing from bore.
Assemble control arm bushing service set. Set includes Nut (J-21474-18 ), Bolt (J-21474-19 ), Spacer (J-21474-12 ) and Receiver (J-21474-5 ) over new bushing positioned in bore.