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The 2006 Chevy Uplander came in four different trim levels; the LS, LT, Cargo and LS fleet. All trim levels use sealed front wheel bearings that require that you replace entire hub assembly to replace the bearings. To replace the front hub assembly, you'll need a special tool and a helper at various points throughout the procedure.
Items you will need
- Lug wrench
- Floor jack
- Jack stands
- Socket set
- 1/2-inch-drive-breaker bar
- 34 mm socket
- Mechanics wire
- Phillips screwdriver
- Front hub spindle remover (GM No. J-28733-b)
- New hub assembly
- New hub assembly bolts
- New spindle nut
- Torque wrench
Park the vehicle and set the parking brake. Loosen the lug nuts on the wheel to be serviced, with a lug wrench. Lift the front end with a floor jack and place jack stands under the front jacking points -- the pinch welds in the subframe rails. Lower the front end until it rests securely on the jack stands. Nudge the vehicle to ensure it is safe to work under.
Remove the lug nuts. Remove the wheel and tire. Squeeze the locking tab and disconnect the wiring harness from the wheel speed sensor pigtail. Separate the sensor pigtail from its bracket.
Instruct a helper to sit in the vehicle and apply the brakes. Remove the axle nut with a 34 mm socket and 1/2-inch-drive breaker bar. Remove the bolts securing the brake caliper to the steering knuckle with a socket and ratchet. Remove the brake caliper and bracket from the steering knuckle as a unit. Hang the bracket from the suspension with mechanics wire. Don't let it hang by the brake hose.
Remove the screw holding the brake rotor to the wheel hub with a Phillips screwdriver. Slide the rotor off the wheel hub. Install a hub spindle remover over the wheel studs. Install three lug nuts to hold the tool in place. Rotate the push bolt clockwise with a socket and ratchet to push the axle out of the hub. Support the axle joints from the suspension with mechanics wire to prevent damage to the joints.
Remove the tool from the wheel hub. Remove the three wheel hub bolts on the back side of the steering knuckle and remove the wheel hub from the steering knuckle. Discard the wheel hub bolts and spindle nut.
Clean the steering knuckle mating surface and bore with a wire brush. Line the wheel hub holes up with the holes in the steering knuckle. Push the wheel hub and metal bracket into place while guiding the axle shaft into the wheel hub. Install new wheel hub bolts and tighten them to 96 foot-pounds with a torque wrench. Install the brake rotor and the retaining screw. Tighten the rotor retaining screw to 89 inch-pounds. Remove the mechanics wire from the axle joints.
Slide the caliper and bracket assembly into place. Install the caliper bracket bolts and tighten them to 137 foot-pounds. Instruct a helper to apply the brakes. Tighten the axle nut to 118 foot-pounds.
Connect the speed sensor pigtail to the wiring harness. Slide the pigtail into place on its bracket. Install the wheel and snug the lug nuts. Lift the front end off the jack stands and remove them. Lower the front end to the ground. Tighten the lug nuts to 100 foot-pounds in a crisscross pattern.
- Reusing the hub bolts or spindle nut can result in the axle or wheel hub coming loose while driving.
- Prodemand.com: 2006 Chevy Uplander; Service Manual; Driveline; Wheel Drive Shafts; Torque Specifications
- Prodemand.com: 2006 Chevy Uplander; Service manual; Chassis; Front Suspension; Wheel Hub Front; Procedures
- Prodemand.com: 2006 Chevy Uplander; Service Manual; Driveline; Wheels and Tires; Specifications
- Prodemand.com: 2006 Chevy Uplander; Chassis; Brakes; Front; Caliper Bracket; Removal and Installation