NHTSA Campaign Id 90V048000; Date: Mar. 12, 1990
Pinch bolt could loosen and break; this could cause loss of truck steering control and result in a crash.
1988 Mack CH; 1989 Mack CH; 1990 Mack CH
Component: Steering:linkages
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 6,696
The upper and lower pinch bolt on the steering pitman arm and the lower pinch bolt connection on shephard power gears were not torqued correctly.
Install english hex head bolts and flat washers; torque pinch bolts to specifications.
System: steering wheel arm pinch bolt. Vehicle description: heavy-duty trucks with trw power and manual gears and sheppard power gears.
Date Owners notified by Manufacturer: Jun 27, 1990
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