Complete removal and replacement of the front spindle/steering knuckle assembly on a 1966 Corvette, including bearing removal, brake caliper removal, and tie rod separation.

Warnings

Tools required

Parts

• Front spindle/steering knuckle assembly × 1 — Use OEM specification
• Inner wheel bearing × 1 — Use OEM specification
• Outer wheel bearing × 1 — Use OEM specification
• Inner bearing race × 1 — Use OEM specification
• Outer bearing race × 1 — Use OEM specification
• Wheel bearing grease seal × 1 — Use OEM specification
• Spindle nut × 1 — Use OEM specification
• Cotter pin for spindle nut × 1 — Use OEM specification
• Cotter pin for tie rod end × 1 — Use OEM specification
• Upper ball joint castle nut × 1 — Use OEM specification
• Lower ball joint castle nut × 1 — Use OEM specification
• Wheel bearing grease (high-temp) × 1 — NLGI Grade 2

Fluids

• DOT 4 Brake Fluid — 0.5 qt

Preparation

1. Park vehicle on level surface and set parking brake firmly
2. Place wheel chocks behind rear wheels
3. Loosen front wheel lug nuts 1/2 turn while vehicle is on ground
4. Raise front of vehicle with floor jack at factory jacking point
5. Place jack stands under frame rails and lower vehicle onto stands
6. Remove front wheel completely
7. Clean spindle, brake caliper mounting area, and suspension components with wire brush to expose fasteners

Procedure

1. 1

   Remove brake caliper
   Remove the 2 caliper mounting bolts securing the caliper to the spindle bracket using a socket wrench. Carefully lift the caliper off the rotor and support it with a wire hook or bungee cord to the frame rail. Do not let the caliper hang by the brake hose. Do NOT disconnect the brake hose unless the caliper is being replaced.
2. 2

   Remove dust cap and spindle nut
   Pry off the dust cap from the center of the hub using a flat screwdriver or pry bar. Straighten and remove the cotter pin from the spindle nut using pliers or a cotter pin puller. Remove the spindle nut castle crown and then unscrew the large spindle nut using the correct spindle nut socket (verify size against factory specification). The nut will be tight and may require significant force.
3. 3

   Remove hub and rotor assembly
   With the spindle nut removed, carefully pull the hub and rotor assembly straight off the spindle. The outer wheel bearing will come out with the hub. Be prepared to catch the outer bearing and washer as they slide off. Set the hub assembly aside on a clean surface with the outer bearing removed and stored safely.
4. 4

   Remove inner bearing seal and bearing
   From the back side of the hub, use a brass drift or seal puller to carefully remove the inner grease seal. This seal is not reusable. Once the seal is removed, the inner wheel bearing will drop out. Inspect both bearings and races for pitting, scoring, or discoloration indicating overheating.
5. 5

   Disconnect tie rod end
   Locate the tie rod end castle nut where it connects to the spindle steering arm. Remove the cotter pin and unscrew the castle nut completely. Use a tie rod separator tool or pickle fork to separate the tie rod taper from the spindle arm. Strike the tool sharply with a hammer to break the taper free. The tie rod will pop loose suddenly.
6. 6

   Support lower control arm
   Place a floor jack or jack stand under the lower control arm as close to the ball joint as possible. Raise the jack slightly to take up the load of the control arm and coil spring. This prevents the control arm from dropping suddenly when the ball joints are separated.
7. 7

   Disconnect upper ball joint
   Remove the cotter pin from the upper ball joint castle nut. Unscrew the castle nut but leave it threaded on a few turns. Use a ball joint separator or strike the side of the spindle boss with a hammer while applying upward pressure on the lower control arm with the jack. When the taper breaks free, remove the castle nut completely and separate the spindle from the upper ball joint stud.
8. 8

   Disconnect lower ball joint and remove spindle
   Remove the cotter pin and castle nut from the lower ball joint. Use the ball joint separator again to break the taper connection. Carefully lower the jack supporting the control arm while guiding the spindle clear of both ball joint studs and the tie rod. Remove the spindle assembly completely from the vehicle.
9. 9

   Remove old bearing races from hub
   If reusing the hub with the new spindle, drive out the old bearing races from inside the hub using a brass drift punch and hammer. Work around the race evenly, alternating sides to prevent cocking. Inspect the hub bearing surfaces for damage. Clean all grease and debris from the hub cavity with solvent and a clean rag.
10. 10

    Install new bearing races
    Place the new outer bearing race into the hub and use a bearing race driver or large socket that contacts only the outer edge of the race. Drive the race in squarely until it seats firmly against the hub shoulder. Repeat for the inner bearing race. Verify both races are fully seated and flush with no gaps visible.
11. 11

    Pack wheel bearings with grease
    Using a bearing packer tool or by hand, pack high-temperature wheel bearing grease into both the inner and outer wheel bearings. Work the grease completely through the bearing cage and rollers until grease appears on the opposite side. Coat the outside of the bearing with a thin layer of grease. Apply a coating of grease to the bearing races inside the hub.
12. 12

    Install inner bearing and seal
    Place the packed inner bearing into the inner race of the hub. Position the new grease seal squarely over the bearing and tap it into place using a seal driver or large socket that contacts the outer edge of the seal. Drive the seal until it is flush with the back of the hub. Fill the hub cavity approximately 1/3 full with additional grease.
13. 13

    Position new spindle assembly
    Clean the tapers on the upper and lower ball joint studs with a wire brush. Support the new spindle and align it with the upper ball joint stud first, threading the castle nut on a few turns. Use the floor jack under the lower control arm to raise the arm and align the lower ball joint stud with the spindle. Thread the lower castle nut on as well.
14. 14

    Tighten ball joint connections
    Tighten the upper ball joint castle nut to specification and continue tightening to the next castle slot that aligns with the stud hole. Install a new cotter pin and bend the ends securely. Repeat for the lower ball joint castle nut. Verify both ball joint studs are fully seated in the spindle tapers with no movement.
15. 15

    Reconnect tie rod end
    Insert the tie rod end stud into the spindle steering arm. Thread the castle nut onto the stud and tighten to specification. Continue tightening to align the castle slot with the cotter pin hole. Install a new cotter pin and bend the ends. Verify the tie rod connection is tight with no play.
16. 16

    Install hub and rotor assembly
    Place the packed outer bearing into the outer race of the hub. Carefully slide the hub and rotor assembly onto the new spindle, ensuring the inner bearing seal seats properly on the spindle. Push the hub fully onto the spindle until it stops.
17. 17

    Adjust wheel bearing preload
    Install the washer and spindle nut. Tighten the spindle nut while rotating the hub forward to seat the bearings (snug, approximately 12 ft-lbs per factory spec — verify). Back the nut off, then hand-tighten the nut until just snug with no bearing drag felt while rotating the hub. Loosen the nut to the first castle slot that aligns with the cotter pin hole. Install a new cotter pin and bend securely. The hub should rotate freely with end play per factory specification (verify; commonly 0.001-0.008 inch).05 inch end play.
18. 18

    Install dust cap
    Pack a small amount of grease into the dust cap. Tap the dust cap squarely onto the hub center using a rubber mallet or soft-faced hammer until it seats flush against the hub.
19. 19

    Reinstall brake caliper
    Position the brake caliper over the rotor and align the mounting bolt holes with the spindle bracket. Install the 2 caliper mounting bolts and tighten securely. Verify the caliper pistons are not extended excessively; if they are, compress them using a C-clamp before installation.

Reassembly

1. Install wheel and hand-tighten lug nuts in a star pattern
2. Raise vehicle slightly off jack stands with floor jack, remove stands, and lower vehicle to ground
3. Torque wheel lug nuts to specification in a star pattern
4. Pump brake pedal several times until firm before moving vehicle
5. Check brake fluid level and top off with DOT 4 brake fluid if necessary

Verification

• Start engine and verify power steering operates smoothly with no binding through full steering range
• Test drive vehicle at low speed in a safe area, checking for any unusual noises, vibrations, or pulling during braking
• After test drive, recheck wheel bearing adjustment by jacking up corner and checking for excessive play in hub (should be 0.001-0.005 inch end play)
• Verify no brake fluid leaks at caliper or connections
• Inspect all fasteners are tight and cotter pins are properly installed and bent
• After 50-100 miles, recheck wheel lug nut torque and ball joint castle nut tightness

More procedures for this vehicle