Steering Arm, Knuckle & King Pins - V30/3500: Removal
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1990 GMC Suburban, 1990 GMC Pickup, 1990 GMC Jimmy, 1990 GMC Cab & Chassis, and 1990 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
- Raise and support vehicle. Remove wheel. Remove locking hub assembly. Remove hub and rotor assembly, and spindle. If necessary, tap spindle with soft-faced hammer to free it from steering knuckle.
- Inspect bronze spacer (located between axle shaft joint assembly and bearing). If excessive wear is evident, replace spacer.
- Remove upper kingpin cap nuts alternately (spring will force cap up). See Figure . Remove cap, spring and gasket. From underside of steering knuckle, remove 4 screws from lower bearing cap and kingpin. Remove bearing cap and lower kingpin.
- Remove upper kingpin tapered bushing and steering knuckle from yoke. With yoke mounted in vise, remove upper kingpin with large breaker bar and Kingpin Socket (J-26871 ). It may require up to 600 ft. lbs. (813 N.m) to break kingpin loose. Using hammer and drift, drive out lower kingpin bearing race, bearing, grease retainer and seal.