Parking Brake Cable

This procedure covers the removal and replacement of the parking brake cable assembly on a 1966 Chevrolet Corvette with 327ci V8, including rear cable routing and adjustment.

Warnings

Tools required

Parts

• Parking brake cable assembly (left or right or both as needed) × 1 — Use OEM specification
• Cable retaining clips (if damaged) × 2 — Use OEM specification
• Cable equalizer (if damaged) × 1 — Use OEM specification

Preparation

1. Park vehicle on level, solid ground. Place transmission in PARK (automatic) or 1st gear (manual).
2. Place wheel chocks firmly in front of both front wheels.
3. Release the parking brake lever fully (lever should be in down position).
4. Apply penetrating oil to all visible cable fasteners, clips, and adjustment nuts. Allow 10-15 minutes to penetrate if components show corrosion.
5. Raise the rear of the vehicle using a floor jack at the rear differential or frame crossmember.
6. Secure the vehicle on jack stands placed under the frame rails behind the rear suspension mounting points. Ensure stands are rated for at least 2 tons each.
7. Remove the rear wheels using a 3/4" lug wrench or impact wrench to improve access (optional but recommended).
8. Inspect the parking brake cable routing from underneath to identify which cable(s) require replacement.

Procedure

1. 1

   Access the front cable connection at console
   Working inside the vehicle, remove the console side panels to access the parking brake lever mechanism. The 1966 Corvette console typically has 4 screws holding each side panel. Remove these screws using a Phillips screwdriver and set panels aside. Locate the forward parking brake cable where it connects to the lever assembly under the console.
2. 2

   Disconnect front cable from parking brake lever
   Locate the cable attachment point at the parking brake lever mechanism. The cable connects via a clevis pin or similar fastener at the lever arm. Remove the cotter pin (if equipped) using needle-nose pliers, then slide out the clevis pin to disconnect the cable from the lever. Note the cable routing through any guides or clips in the console area for reinstallation reference.
3. 3

   Release cable from intermediate guides
   Working from underneath the vehicle, locate the forward cable where it passes through the transmission tunnel. The cable is typically secured by 2 metal clips or brackets along the tunnel. Using a flathead screwdriver or 1/2" wrench, remove the fasteners securing these clips and carefully release the cable from the guides. On some models, clips simply snap off with firm pressure.
4. 4

   Locate the cable equalizer assembly
   Move to the rear underside of the vehicle. Locate the parking brake cable equalizer, positioned approximately beneath the floor pan forward of the rear differential. The equalizer is a Y-shaped bracket where the single front cable splits into left and right rear cables. Inspect all three cable connections at this point.
5. 5

   Disconnect cables from equalizer
   At the equalizer assembly, loosen the adjustment nut (typically 9/16") that secures the front cable. Back this nut off completely and slide it up the cable thread. Note the position and number of threads showing for reference during adjustment. Disconnect the front cable from the equalizer by sliding it out of the slot or removing the retaining clip. If replacing rear cables, disconnect them from the equalizer using the same method.
6. 6

   Disconnect cable at rear brake backing plate
   For each rear cable being replaced, locate where it connects to the rear disc brake parking brake actuator on each side. The cable end typically attaches to the actuating lever of the internal parking brake mechanism within the rotor hat. Compress the cable housing retaining fingers (usually requiring adjustable pliers) and push the housing forward through the backing plate hole. Then unhook the cable end from the parking brake actuating lever within the rear disc brake assembly (the parking brake uses internal shoes inside the rotor hat). The cable should now be free at the rear end.
7. 7

   Remove cable retaining clips along frame
   Follow each cable being replaced along its path from the equalizer to the rear wheel. The cables are secured to the frame rail or rear suspension components by 3 metal retaining clips per side. Using a 1/2" socket or wrench, remove the fasteners holding these clips and release the cable from each mounting point. Note the exact routing for reinstallation.
8. 8

   Remove old cable assembly
   With all connections and clips released, carefully pull the cable assembly out from under the vehicle. If replacing only one rear cable, remove just that side. If replacing the front cable, pull it through the tunnel from underneath. Inspect the old cable for the specific failure point (fraying, corrosion, kinking) to verify the replacement decision.
9. 9

   Prepare and route new cable
   Compare the new cable assembly to the old one to verify correct length and end fittings. Apply a light coating of cable lubricant to the inner wire if not pre-lubricated. Beginning at the rear (for rear cables) or front (for front cable), route the new cable through the same path as the old cable, ensuring it does not contact the exhaust system, driveshaft, or any sharp edges. Install retaining clips loosely at frame mounting points to hold cable in approximate position.
10. 10

    Connect cable at rear brake backing plate
    At each rear wheel, connect the cable end to the parking brake actuating lever on the rear disc brake assembly, ensuring it seats fully. Secure the cable housing to its mounting bracket until the retaining fingers snap into place and lock the housing securely. Verify the cable cannot be pulled back through the hole.
11. 11

    Connect cables to equalizer
    Route rear cables (if replaced) to the equalizer and insert the cable ends into the equalizer slots or attach with retaining clips per original configuration. Insert the front cable through the equalizer and thread the adjustment nut onto the cable threads. Leave the adjustment nut loose for now; final adjustment will be performed after all connections are complete.
12. 12

    Secure cable retaining clips
    Working from rear to front, tighten all cable retaining clips along the frame rails and suspension mounting points. Ensure cables have a smooth path with no sharp bends or contact with moving parts. Verify at least 1 inch clearance from exhaust components and the driveshaft throughout the entire cable run.
13. 13

    Connect front cable to parking brake lever
    Working inside the vehicle, route the front cable through the console guides and clips. Connect the cable end to the parking brake lever mechanism using the clevis pin. Install the cotter pin (if equipped) to secure the clevis pin in place. Verify the cable moves smoothly when the parking brake lever is raised and lowered.
14. 14

    Adjust parking brake cable tension
    With all cables connected, adjust the equalizer nut to achieve proper parking brake function. While a helper applies firm pressure to the parking brake lever (or working alone, use the adjustment nut as the reference), tighten the equalizer adjustment nut using a 9/16" wrench until there is no slack in the cables. The parking brake lever should engage within 3 to 5 clicks when pulled firmly. Continue to fine-tune the adjustment nut until both rear brakes apply evenly and hold the vehicle on a slight grade.
15. 15

    Verify cable operation and clearances
    With the adjustment complete, release the parking brake lever fully and verify both rear wheels rotate freely by hand with no drag. Apply the parking brake and verify both rear wheels lock and cannot be rotated. Check that cables do not contact the driveshaft by having a helper apply and release the parking brake while you observe cable movement from underneath. Reinstall rear wheels if removed and torque lug nuts to approximately 65-70 ft-lbs in a star pattern (verify against factory specification). Verified detail (A 1966 Corvette may not have a parking brake warning light; brake warning indicators were not universal on mid-1960s vehicles. This verification step may be era-inappropriate.): Release the parking brake and verify the lever returns fully to the down position with no residual cable tension.

Reassembly

1. Reinstall console side panels inside the vehicle, securing with all original screws.
2. If rear wheels were removed, reinstall and torque lug nuts to 80 ft-lbs in a star pattern.
3. Lower vehicle from jack stands carefully, ensuring stability before removing stands completely.
4. Remove wheel chocks after vehicle is fully lowered and stable.

Verification

• With the vehicle on level ground and transmission in NEUTRAL (engine off), verify the parking brake lever releases fully and rear wheels spin freely with no brake drag.
• Apply the parking brake firmly. The lever should engage within 3 to 5 clicks. Verify both rear wheels are locked and cannot be rotated by hand.
• With the parking brake applied, attempt to push the vehicle. It should not roll on level ground.
• On a slight incline (if safe area available), apply parking brake with transmission in PARK or gear and verify vehicle remains stationary for at least 30 seconds.
• Release parking brake and verify no warning lights remain illuminated on the instrument panel.
• Test drive the vehicle at low speed in a safe area and verify service brakes operate normally without interference from parking brake cables.

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