Competition Package Suspension
WHEEL ALIGNMENT SETUP1. Position the vehicle on an alignment rack.
2. Install all required alignment equipment on the vehicle, per the alignment equipment manufacturer's instructions. On this vehicle, a four-wheel alignment is recommended.
NOTE: Prior to reading the vehicle's alignment readouts, the front and rear of vehicle should be jounced. Induce jounce (rear first, then front) by grasping the center of the bumper and jouncing each end of vehicle an equal number of times. The bumper should always be released when vehicle is at the bottom of the jounce cycle.
3. Read the vehicle's current front and rear alignment settings. Compare the vehicle's current alignment settings to the vehicle specifications for camber, caster and toe-in.
4. If the rear alignment is out of specification, adjust it first before proceeding to the front.
CAMBER AND CASTER
Front and rear camber and caster settings on this vehicle are determined at the time the vehicle is designed, by the location of the vehicle's suspension components. This is referred to as Net Build. The result is no required adjustment of camber and caster after the vehicle is built or when servicing the suspension components. Thus, when performing a wheel alignment, caster and camber are not normally considered adjustable angles. Camber and caster should be checked to ensure they meet vehicle specifications.
If either front or rear camber is found not to meet alignment specifications, it can be adjusted using an available camber adjustment bolt package. Before installing a camber adjustment bolt package on a vehicle found to be outside the specifications, inspect the suspension components for any signs of damage or bending.
On vehicles equipped with the optional ACR competition package, a different camber adjustment bolt package is available for installation and adjustment of the front suspension. Refer to Competition Package Suspension.
NOTE: when installing camber adjustment bolt packages, do not use a camber adjustment bolt package designed for the ACR competition package on a vehicle without the ACR competition package or vice-versa.
No adjustment can be made to the caster setting on this vehicle. If the vehicle's caster is not within alignment specifications, check for damaged suspension components or body parts.
CAUTION: Do not attempt to adjust the vehicles wheel alignment by heating or bending any of the suspension components.
COMPETITION PACKAGE CAMBER ADJUSTMENT BOLT PACKAGE INSTALLATION
If a vehicle is equipped with the optional ACR competition package, there is a special camber adjustment bolt package available to allow for adjusting the front wheel camber. Unlike the camber adjustment bolt package used on vehicles without the ACR competition package, this camber adjustment bolt package utilizes eccentric cam bolts, not undersized bolts, for adjustment purposes.
NOTE: Perform this procedure to both sides of the vehicle.
To install and adjust the camber adjustment bolt package, follow the procedure below.
1. Raise the front of vehicle by the frame until the front tires are off the floor. Then from the location on the vehicle requiring the strut to be modified.
2. Remove the tire and wheel assembly.
CAUTION: When removing the steering knuckle from the strut clevis bracket, do not put a strain on the brake flex hose. Also, do not let the weight of the steering knuckle assembly be supported by the brake flex hose when removed from the strut assembly. If necessary, use a wire hanger to support the steering knuckle assembly.
CAUTION: The steering knuckle-to-strut clevis bracket attaching bolts are serrated and must not be turned during removal. Remove the nuts while holding the bolts stationary in the steering knuckle.
3. Remove the top and bottom steering knuckle-to-strut clevis bracket attaching bolts and discard. Separate the steering knuckle from the strut clevis bracket and position the steering knuckle so it is out of the way of the strut.
Bolt Hole Grinding Area (Shows Both Directions):
CAUTION: The lower clevis bracket bolt hole needs to be elongated. When elongating the hole, do not over-enlarge the hole.
4. Draw a line from the center of the upper clevis bracket bolt hole down through the center of the lower clevis bracket bolt hole. Using this line as a center line, on the lower bolt hole, measure out at a 90 degree angle from the center line 11 min (0.433 inch), which is approximately 4 mm (0.157 inch) past the edge of the original bolt hole. If negative caster is desired, measure towards the outboard side of the strut from the center line. If positive caster is desired, measure towards the inboard side of the strut from the center line. Mark the strut clevis bracket at this point. Draw the slot as shown. Make sure the original bolt hole height is maintained throughout the slot. Repeat this step on the other side of the strut clevis bracket.
5. Using an appropriate grinder and grinding wheel, elongate the bottom hole until the slot indicated is formed. Repeat this step on the other side of the strut clevis bracket.
6. Install the bolts provided in the adjustment package into the hole where the original bolts were removed. Install the standard-headed bolt in the top hole and the eccentric-cam-headed bolt in the lower hole. Install the bolts from the rear.
7. Install the dog bone washer on the nut side of the strut clevis bracket attaching bolts. Install the nuts, tightening them just enough to hold the steering knuckle in position when adjusting the front camber, but still allowing the steering knuckle to move in clevis bracket.
8. Reinstall the tire and wheel assembly.
9. Repeat the above procedure to the other side front strut.
10. Lower the vehicle, then jounce the front and rear of the vehicle.
NOTE: The camber is only to be set to a specification that is not the preferred camber setting when the vehicle is going to be used in a competitive driving event. The front camber must always be set back to the preferred camber specification when the vehicle is to be driven on the street under normal driving conditions.
Competitive Package Camber Adjustment Bolt Package Installed:
11. Adjust the front camber to the preferred setting (or desired setting if being used for off-street competition purposes) by rotating the lower eccentric cam bolt against the cam stop areas on the strut clevis bracket. When camber is correctly set, tighten the upper strut clevis bracket bolt and lower cam bolt. Again jounce front and rear of vehicle an equal amount of times and verify front camber setting. See Alignment Specifications for required specifications.
12. When vehicle is at the correct camber setting, tighten both front strut clevis bracket-to-steering knuckle attaching bolts to 100 Nm (75 ft. lbs.), plus an additional 1/4 turn after the torque is met.
13. Once camber is set, adjust the front toe to meet the preferred specification setting. Refer to wheel alignment service procedure.
TOE
1. Center the steering wheel and lock it in place using a steering wheel clamp.
NOTE: When performing the toe setting procedure, make sure the rear toe is set to the preferred specification before setting the front toe to the preferred specification.
REAR TOE
Rear Lateral Link To Crossmember Attaching Bolts:
1. Loosen the nuts on the left and right rear lateral link attaching bolts at the rear crossmember.
CAUTION: When adjusting rear toe, the notches on the lateral link adjustment cams are not to be facing down. The notches in the adjustment cams are only to be facing up or toward one side.
Rear Wheel Toe Adjustment Cams:
2. Rotate lateral link adjustment cams until the preferred rear toe specification is obtained.
3. While holding the toe adjustment cams from turning, tighten the attaching bolt nuts. This will securely hold the adjustment cams in position. Tighten the lateral link attaching bolt nuts to a torque of 95 Nm (70 ft. lbs.).
4. Proceed to FRONT TOE to set the front toe.
FRONT TOE
CAUTION: Do not twist the inner tie rod-to-steering gear rubber boots while turning the inner tie rod during the front toe adjustment.
Front Wheel Toe Adjustment:
1. Loosen the tie rod adjusting jam nuts. Grasp each inner tie rod at its serrations and rotate it one way or the other until the front wheel toe is set to the preferred specification.
2. Tighten tie rod adjusting jam nuts to a torque of 54 Nm (40 ft. lbs.).
3. Make sure the inner tie rod-to-steering gear rubber boots are not twisted. If twisted, loosen the boot clamp at the inner tie rod and move the boot as necessary.
4. Remove steering wheel clamp.
5. Remove the alignment equipment.
6. Road test the vehicle to verify the steering wheel is straight and the vehicle does not pull or wander.