Owners manual

20
51088
Revised
12.1.05
1. If new tires are installed that are more than 10% taller than original tires, the speedometer
must be recalibrated for the rear wheel anti-lock brake system to function properly.
Contact an authorized GM dealer for details on recalibration.
2. With vehicle on the floor, cycle the steering from lock to lock and inspect the steering,
suspension and driveline systems for proper operation, tightness and adequate clearance.
Recheck brake hose/fittings for leaks. Be sure all brake lines are long enough for safe
operation.
3. Have headlights readjusted to the proper settings.
4. Realign front end to factory specifications. Be sure the vehicle is at the desired ride height
prior to realignment.
5. Recheck ALL fasteners at 100 miles to make sure they have not come loose. Due to the
additional wear and tear created by larger tires and wheels, we recommend that you
periodically check the suspension system and steering components to ensure service life
and safe vehicle operation. 
Final notes:
of the vehicle is approximately 1/2” above the final desired ride height. Bars will settle slightly
after vehicle is driven.
NOTE:
⇒ Make sure to check rear brake line for any pinching, rubbing or excess stretching. Modify rear
drop if needed.
⇒ Each bar may require slightly different adjustment to level vehicle side to side.
⇒ At maximum ride height, there still must be at least 3/16” of clearance between the bump
stop and the front lower control arm. Operating the vehicle with less bump stop clearance will
result in a harsh ride and accelerated suspension component wear. 