ADJUSTMENTS
Note. Prior to performing wheel alignment, perform visual and mechanical inspection of wheels, tires and suspension components. See the PRE-ALIGNMENT CHECKS article in this section. For basic wheel alignment theory, refer to the WHEEL ALIGNMENT THEORY/OPERATION article in this section.
Note. While performing following procedures, perform rear wheel alignment first to ensure proper front alignment angles.
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. The difference between left and right caster should NOT be more than 1/2 degree.
TOE-IN ADJUSTMENT (FRONT)
Loosen tie rod end outer adjusting sleeve clamp bolts. Rotate outer sleeve to adjust toe-in to specification. Tighten clamp bolts to specification. Ensure bolts are at bottom of tie rod and bolt head is facing forward.
| Application | Specification | |
|---|---|---|
| Camber (Degrees) | ||
| Front | + 0.75 +/- 0.5 | |
| Caster (Degrees) | ||
| Front | + 3 +/- 1 | |
| Toe-In (Inches) | ||
| Front | + 1/8 +/- 1/16 | |
| Toe-Out On Turns | ||
| Inner (Front) | N/A | |
| Outer (Front) | N/A | |
| Steering Axis Inclination (SAI) (Front) | N/A | |
| Wheelbase | ||
| Inches | N/A | |
| Millimeters | N/A | |
WHEEL ALIGNMENT SPECIFICATIONS
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) | |
|---|---|---|
| Idler Arm-to-Frame | 75 (102) | |
| Tie Rod Clamp Nuts or Lock Nuts | 15 (20) | |
| Lower Control Arm-to-Axle Bolt | 79 (107) | |
| Lower Control Arm-to-Axle Nut | 92 (125) | |
| Lower Control Arm-to-Frame Bolt | 79 (107) | |
| Lower Control Arm-to-Frame Nut | 92 (125) | |
| Shock Absorber Nut (Lower Attachment) | 62 (84) | |
| Shock Absorber Nut (Upper Attachment) | ||
| Except Superlift Shocks | 12 (16) | |
| Superlift Shocks | 20 (27) | |
| Stabilizer Bar-to-Body Bracket Bolt | 52 (70) | |
| Stabilizer Bar-to-Control Arm Bolt | 52 (70) | |
| Track Bar & Brace-to-Body Nut | 58 (78) | |
| Track Bar-to-Axle Bolt | 93 (126) | |
| Torque Arm-to-Rear Axle Nut | 100 (136) | |
| Torque Arm-to-Transmission Bolt | 31 (42) | |
| Upper Control Arm-to-Axle Bolt | 80 (108) | |
| Upper Control Arm-to-Axle Nut | 70 (95) | |
| Upper Control Arm-to-Frame Nut | 92 (125) | |
| Wheel Lug Nuts | 100 (136) | |
TORQUE SPECIFICATIONS
See also:
• PRE-ALIGNMENT CHECKS
• WHEEL ALIGNMENT THEORY/OPERATION