This procedure replaces the front suspension shock absorbers on a 1966 Chevrolet Corvette with 327ci V8. Note: C2 Corvettes use coil springs with shock absorbers, not struts.

Warnings

Tools required

Parts

• Front shock absorber × 2 — Use OEM specification or Monroe or Gabriel equivalent for 1963-1967 Corvette
• Upper shock mounting bushings and washers × 2 — Use OEM specification
• Lower shock mounting bushings and washers × 2 — Use OEM specification

Preparation

1. Park vehicle on level, solid ground and engage parking brake firmly
2. Place wheel chocks behind both rear wheels
3. Apply penetrating oil to upper and lower shock mounting nuts and allow to soak (ideally 24 hours before work)
4. Loosen front wheel lug nuts 1/2 turn while vehicle is on ground
5. Raise front of vehicle with floor jack at frame crossmember
6. Install jack stands under frame rails behind front suspension crossmember
7. Lower vehicle onto jack stands and verify stability before proceeding
8. Remove both front wheels completely
9. Inspect suspension components for wear, damage, or corrosion while accessible

Procedure

1. 1

   Access upper shock mounting
   Open the hood. Locate the upper shock absorber mounting studs protruding through the inner fender well, directly above the front spindle. Clean the area around the upper mounting nuts with a wire brush to remove dirt and corrosion.
2. 2

   Remove upper shock mounting nut
   Using a 9/16" socket and ratchet, remove the upper shock mounting nut, retainer washer, and rubber grommet from the top of the shock. The shock shaft will extend through a rubber bushing assembly. Keep all hardware organized for comparison with new parts.
3. 3

   Support lower control arm
   Position a floor jack under the lower control arm spring seat, approximately 6 inches inboard from the lower ball joint. Raise the jack until it firmly supports the lower control arm and begins to take the coil spring load. The coil spring is captured between the lower control arm and the frame crossmember, so the jack must fully support the arm to control the stored spring energy. Note: the shock absorber does NOT retain spring tension — the spring does — so the jack support is critical for safety.
4. 4

   Remove lower shock mounting bolts
   Locate the lower shock mounting bracket attached to the lower control arm. Using a 9/16" wrench to hold the nut and a 9/16" socket on the bolt head, remove the 2 bolts securing the lower shock mount to the control arm. The shock absorber is now free.
5. 5

   Remove shock absorber
   Compress the shock absorber by hand to collapse it, then guide it downward and out through the bottom of the coil spring. Maneuver the shock past the spring coils and remove it from the vehicle. Inspect the mounting bushings and hardware for wear or deterioration.
6. 6

   Inspect coil spring and control arm
   With the shock removed, visually inspect the coil spring for cracks, damage, or sagging. Inspect the lower control arm spring seat and upper spring isolator for wear. Check the control arm bushings for deterioration. Address any issues before installing new shocks, as this is an opportune time for additional maintenance.
7. 7

   Prepare new shock absorber
   Remove the new shock absorber from its packaging. Install the lower rubber bushing, washer, and any required sleeve onto the lower shock eye per the manufacturer's instructions. Install the upper mounting grommet and washer onto the shock shaft. Extend and compress the shock 3-4 times to prime the internal valving.
8. 8

   Install new shock absorber
   Compress the new shock fully by hand. Guide the shock upward through the bottom of the coil spring, maneuvering it between the spring coils. Align the upper shock shaft with the mounting hole in the inner fender well and push the shaft through until the upper grommet seats properly against the fender.
9. 9

   Install upper shock mounting
   From the engine compartment, install the upper rubber grommet, retainer washer, and 9/16" mounting nut onto the shock shaft. Hand-tighten the nut, then tighten per the manufacturer's specification. Note: rubber-isolated upper shock mounts are frequently tightened until the grommet compresses to a specified height rather than to a torque value — verify the exact procedure with the shock manufacturer's instructions. Do not overtighten, as this will compress and damage the rubber bushing.
10. 10

    Align lower shock mounting
    Using the floor jack under the lower control arm, carefully adjust the suspension height to align the lower shock mounting holes with the control arm bracket. The shock eye should align perfectly with the mounting bracket without forcing. This may require small adjustments to the jack height.
11. 11

    Install lower shock mounting bolts
    Insert the 2 lower shock mounting bolts through the shock eye and control arm bracket. Install the washers and nuts on the backside. Using a 9/16" wrench to hold the nut and a torque wrench with 9/16" socket on the bolt head, tighten both bolts to the manufacturer's specification (typically 18-20 ft-lbs, but verify with shock instructions).
12. 12

    Release control arm support
    Slowly lower the floor jack supporting the lower control arm, allowing the suspension to extend naturally. Remove the jack from under the control arm. The shock should now be supporting the suspension travel.
13. 13

    Repeat for opposite side
    Repeat steps 1 through 12 for the opposite front shock absorber. Ensure both sides are installed with identical procedures and torque specifications for balanced suspension performance.
14. 14

    Reinstall wheels and lower vehicle
    Reinstall both front wheels and hand-tighten the lug nuts in a star pattern. Raise the vehicle slightly with the floor jack to remove the jack stands. Lower the vehicle completely to the ground. Torque the wheel lug nuts to the factory specification (verify exact value for the 1966 Corvette; commonly in the 65-80 ft-lbs range) in a star pattern with the vehicle on the ground.

Reassembly

1. Double-check that all shock mounting hardware is properly torqued and secure
2. Verify that no tools or parts were left in the wheel wells or suspension area
3. Confirm wheel lug nuts are torqued to specification with vehicle weight on the ground

Verification

• Bounce each front corner of the vehicle firmly 3-4 times. The suspension should rebound smoothly and settle within 1-2 oscillations, indicating proper shock function
• Perform a careful test drive at low speed (under 25 mph) in a safe area, checking for unusual noises, vibrations, or handling issues
• Listen for any knocking, clunking, or rattling from the front suspension that would indicate loose mounting hardware
• Verify steering response is normal and the vehicle tracks straight without pulling to either side
• After the first 50-100 miles, re-torque all shock mounting hardware and wheel lug nuts to specification
• If any unusual behavior is noted, immediately stop driving and re-inspect all work performed

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