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.
Note. While performing following procedures, perform rear wheel alignment first to ensure proper front alignment angles. Corvette requires 4-wheel alignment.
CAMBER ADJUSTMENT
Adjust front camber by adding or subtracting equal number of shims between both ends of upper control arm shaft and frame. (Scheme 1) To adjust rear camber on Corvette, loosen lower spindle rod adjusting cam lock nut and bolt. Turn cam to obtain correct camber. (Scheme 1) Tighten adjusting cam lock nut and bolt.
Scheme 1
CASTER ADJUSTMENT
Caster is adjusted by transferring shims, from front to rear or rear to front, of the upper control arm shaft mounts and frame. (Scheme 2) The difference between left and right caster should NOT be more than 1/2 degree.
TOE-IN ADJUSTMENT (FRONT)
Loosen tie rod end adjusting sleeve clamp bolts. Turn center adjuster sleeve to adjust toe-in. (Scheme 2) Ensure bolts are at bottom of tie rod and bolt head is facing forward. Tighten tie rod end adjuster sleeve clamp bolts.
Scheme 2
| Application | Preferred | Range |
|---|---|---|
| Camber (Degrees) Front | 0 | .5 to .5 |
| Camber (Degrees) Rear | — | — |
| Caster (Degrees) Front | 3 | 2 to 4 |
| Caster (Degrees) Rear | — | N/A |
| Toe-In (Inches) Front | 0 | .1 to .1 |
| Toe-In (Inches) Rear | — | — |
| Toe-In (Millimeters) Front | 0 | 2.5 5o 2.5 |
| Toe-In (Millimeters) Rear | — | — |
| Toe-In (Degrees) Front | 0 | .2 to .2 |
| Toe-In (Degrees) Rear | — | — |
| ° Toe-Out On Turns | N/A | *** |
| Steering Axis Inclination (SAI) | 12 1/2° | *** |
| Wheelbase Inches | 121.5 | *** |
| Wheelbase Millimeters | 3086 | *** |
WHEEL ALIGNMENT SPECIFICATIONS
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) | |
|---|---|---|
| Ball Joint-to-Control Arm Bolt & Nut | 50 (68) | |
| Ball Joint-to-Knuckle Nut | 81 (110) | |
| Brake Caliper Mount Bolts | 38 (52) | |
| Brake Vibration Damper Bolt | 21 (28) | |
| Control Arm Ball Joint (Rear) | 7 (9) | |
| Control Arm Pivot Bolts (Rear) | 125 (169) | |
| Control Arm Pivot Nuts (Rear) | 85 (115) | |
| Front Crossmember Moutnting Bolt | 66 (89) | |
| Hub and Bearing Retainer Bolt | 70 (95) | |
| Hub-to-Drive Axle Nut | 180 (245) | |
| Inner Rear Control Arm Bolt | 66 (89) | |
| Insulator Mounting Bolts & Nuts | 21 (28) | |
| Knuckle Pinch Bolt | 40 (54) | |
| Knuckle Pivot Bolt | 59 (80) | |
| Lower Control Arm-to-Crossmember Pivot Bolt | ||
| Front | 140 (190) | |
| Rear | 90 (123) | |
| Lower Rear Strut Mounting Nuts | 144 (195) | |
| 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) | |
| Tie Rod End-to-Knuckle Mount Nut | 41 (56) | |
| Upper Rear Crossmember Mounting Bolt | 66 (89) | |
| Upper Rear Strut Mounting Nuts | 65 (88) | |
| Wheel Hub-to-Rear Knuckle | 52 (70) | |
TORQUE SPECIFICATIONS
See also:
• PRE-ALIGNMENT CHECKS
• WHEEL ALIGNMENT THEORY/OPERATION