ADJUSTMENTS
Note. Prior to performing wheel alignment, perform visual and mechanical inspection of wheels, tires and suspension components. See PRE-ALIGNMENT CHECKS article. For basic wheel alignment theory, refer to WHEEL ALIGNMENT THEORY/OPERATION article in the GENERAL INFORMATION section.
Note. While performing following procedures, perform rear wheel alignment first to ensure proper front alignment angles. Corvette requires 4-wheel alignment.
CAMBER ADJUSTMENT
To adjust camber, loosen 2 strut-to-steering knuckle bolts. Tighten or loosen camber adjusting bolt, located above spindle next to upper strut-to-steering knuckle bolt, to obtain correct camber. While holding wheel in position, tighten 2 strut-to-steering knuckle bolts.
CASTER ADJUSTMENT
- Loosen, but DO NOT remove, one front outer nut and one inner nut from strut mounting tower. (Scheme 1) Remove remaining nut and washer from strut mounting tower. Raise vehicle until outer strut stud has cleared hole.
- Using an 11/32" drill bit, drill one hole in front and one behind outer strut hole. File excess material from between holes to create an elongated slot. Lower vehicle to install strut into tower. Adjust caster to specification. Tighten nuts to 17 ft. lbs. (24 N.m).
Scheme 1
TOE-IN ADJUSTMENT (FRONT)
Loosen tie rod end lock nut. (Scheme 2) Loosen steering gear dust boot clamp(s) at tie rod end. Turn inner tie rod to obtain correct toe-in. Tighten lock nut to specification. See TORQUE SPECIFICATIONS. Ensure steering gear dust boot is straight after adjustment. Tighten dust boot clamp.
Scheme 2
TOE-IN ADJUSTMENT (REAR)
Loosen front and rear inside control arm mounting bolts. Pry between rear control arm mounting bolts and rear support assembly until proper toe-in is obtained. (Scheme 3) Tighten control arm mounting bolts to specification. See TORQUE SPECIFICATIONS.
Scheme 3
| Application | Preferred | Range |
|---|---|---|
| Camber (Degrees) Front | 0 | 13/16 to 13/16 |
| Camber (Degrees) Rear | 3/32 | 13/32 to 7/32 |
| Caster (Degrees) Front | 2 5/16 | 1 5/16 to 3 5/16 |
| Caster (Degrees) Rear | N/A | N/A |
| Toe-In (Inches) Front | 0 | 3/32 to 3/32 |
| Toe-In (Inches) Rear | 3/32 | 0 to 3/16 |
| Toe-In (Millimeters) Front | 0 | 2.5 to 2.5 |
| Toe-In (Millimeters) Rear | 2.5 | 0 to 5 |
| Toe-In (Degrees) Front | 0 | 0.22 to 0.38 |
| Toe-In (Degrees) Rear | 3/16 | 0 to 3/8 |
| Wheelbase (Inches) | 103.4 | N/A |
| Wheelbase (Millimeters) | 2743 | N/A |
WHEEL ALIGNMENT SPECIFICATIONS
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) | |
|---|---|---|
| Ball Joint | ||
| Control Arm Bolts | 50 (68) | |
| Knuckle Retaining Nut | 48 (65) | |
| Brake Vibration Damper Bolt | 21 (28) | |
| Control Arm Ball Joint (Rear) | (1) 7 (9) | |
| Control Arm Pivot Bolts (Rear) | 125 (169) | |
| Control Arm Pivot Nuts (Rear) | 85 (115) | |
| Disc Brake | ||
| Caliper Bolts | 63 (86) | |
| Support Bracket Bolts (2) | 83 (112) | |
| Front Crossmember Mounting Bolt (Rear) | 66 (89) | |
| Front Hub | ||
| Knuckle Retaining Bolts | 70 (95) | |
| Axle Retaining Nut | 180 (244) | |
| Inner Control Arm Bolts (Rear) | 66 (89) | |
| Knuckle Pinch Bolt (Rear) | 40 (54) | |
| Knuckle Pivot Bolt (Rear) | 59 (80) | |
| Lower Control Arm | ||
| Pivot Bolt | 100 (136) | |
| Tension Strut Nut | 52 (71) | |
| Lower Strut Mounting Nuts (Rear) | 144 (195) | |
| MacPherson Strut | ||
| Strut-to-Body Nuts | 18 (24) | |
| Strut-to-Steering Knuckle | 145 (197) | |
| Strut Piston Rod Top Nut | 44 (60) | |
| Rear Insulator Mounting Bolts & Nuts | 21 (28) | |
| Rear Spring Retainer Bolts | 21 (28) | |
| Rear Stabilizer Bar Mounting Bolt | 43 (58) | |
| Rear Stabilizer Bushing Clip | 37 (50) | |
| Rear Stabilizer-to-Control Arm Bracket | 13 (18) | |
| Rear Suspension Adjustment Link Inner | 63 (85) | |
| Rear Suspension Adjustment Link Outer | 37 (50) | |
| Stabilizer Bar | ||
| Frame Bracket Bolts | 33 (45) | |
| Link Nuts | 13 (17) | |
| Upper Crossmember Mounting Bolt (Rear) | 66 (89) | |
| Upper Strut Mounting Nuts (Rear) | 65 (88) | |
| Wheel Hub-to-Knuckle | 52 (70) | |
| Wheel Lug Nuts | 100 (136) | |
| INCH Lbs. | ||
| Tie Rod End Nut | 96 (10) | |
| (1) Plus 2/3 turn. (2) Use new support bracket bolts. | ||
| (1) | Plus 2/3 turn. |
| (2) | Use new support bracket bolts. |
TORQUE SPECIFICATIONS