Front Caster Adjustment

Use the following procedure in order to prepare the top strut mounting holes:

Fig 1: Removing/Installing Strut Tower Top Bolts
Courtesy of GENERAL MOTORS CORP.
1. Remove the top 3 bolts from the strut tower.
2. Lift the front of the vehicle by the body in order to separate the strut from the inner wheel house. Refer to Lifting and Jacking the Vehicle in General Information.
Fig 2: Creating Slotted Holes
Courtesy of GENERAL MOTORS CORP.
3. Pop out the 2 guide pins.
4. Hand file the excess metal in order to make slotted holes.
5. Paint the exposed metal using rust preventative paint or primer.
6. Lower the front of the vehicle.
7. Install the strut attaching bolts.

   Do not tighten the bolts at this time.

NOTE: Refer to Fastener Notice in Cautions and Notices.
8. Move the top of the strut forward or rearward in order to adjust the caster. A 1 mm (0.040 in) position change at the tower is about equal to a 0.1 degree change in the caster. Refer to Wheel Alignment Specifications .

   Tighten:  Tighten the strut attaching bolts to 47 N.m (35 lb ft).

9. Perform a complete wheel alignment.