NHTSA Campaign Id 79V165000; Date: Jul. 9, 1979
1979 Mack R
Component: Steering:wheel And Handle Bar
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 80
The pinch bolt hole center to steering gear input shaft on the lower yoke dimension exceeds specifications. If the pinch bolt becomes loose, it will not engage the steering gear input shaft notch and the shaft could slip off.
The proper steering gear input shaft yoke will be installed without charge to owner.
Vehicle description: trucks equipped with sg46 manual steering gear. System: steering; shaft assembly. Consequences of defect: should slippage occur, loss of steering control and anaccident could result without prior warning.
Date Owners notified by Manufacturer: Nov 28, 1979
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