NHTSA Campaign Id 77V098000; Date: Jun. 22, 1977
1975 Chevrolet C20; 1976 Chevrolet C20; 1975 Chevrolet C30; 1976 Chevrolet C30; 1975 Chevrolet G30; 1976 Chevrolet G30; 1975 Chevrolet P20; 1976 Chevrolet P20; 1975 Chevrolet P30; 1976 Chevrolet P30; 1975 GMC C20; 1975 GMC C30; 1975 GMC G30; 1975 GMC P20; 1976 GMC P20; 1975 GMC P30; 1976 GMC P30
Component: Suspension:front:control Arm:lower Arm
Manufactured by: General Motors Corp.
Affected Units:: 107,584
The front suspension control arms were assembled with ball joints which may contain sockets that were not properly heat-treated. This may cause the socket to wear rapidly and allow the ball joint stud to separate from the socket, causing either the left or right wheel suspension to collapse.
Dealer will inspect and, where necessary, will replace the ball joints without charge to owner.
Vehicle description: light trucks. System: suspension; independent front control arm, lower. Consequences of defect: if suspension collapses while vehicle is in motion,loss of vehicle control and an accident could occur.
Date Owners notified by Manufacturer: Jun 24, 1977
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