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Recall campaign77V111000

Recall 77V111000: 1976–1977 GMC G30 and 2 other models

Service brakes, hydraulic › Foundation components › Master cylinder
Report received
Jul 15, 1977
Manufacturer
General motors corp.
Potentially affected
12,963vehicles
Model years
1976–1977

Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.

What NHTSA recorded

On the involved vehicles, the brake master cylinder may have been assembled with reservoir mounting bolts that were improperly processed. This could make these bolts brittle and subject to breaking. If breakage occurs, a brake fluid leak may develop between the reservoir and master cylinder. Loss of brake fluid would adversely affect vehicle braking capability.

Remedy

Dealer will replace the master cylinder reservoir mounting bolts with an improved type, without charge to owner.

Affected model years

Pages for each model year show complaints, parts, mileage and other recalls.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.