1986 MACK RM Recalls (2)

Campaign:
88V043000 on 04/05/1988
Component:
Steering:gear box (other than rack and pinion)
Manufactured:
12/31/1984 - 12/31/1987
Affected:
259
Defect:
The steering shaft spline engagement is only .52, the recommended engagement is 2 inches.
Consequence:
Under impacts such as road potholes, it could result inshaft disengagement. the driver would immediately lose steering controlwithout warning and vehicle crash could occur.
Correction:
Replace shafts that measure under the minimum engagement dimensions with a longer shaft.
Notes:
System: steeringvehicle description: trucks

Campaign:
90V034000 on 02/28/1990
Component:
Steering:linkages
Manufactured:
11/30/1980 - 06/30/1988
Affected:
1,862
Defect:
Crack may develop on steering arm that could progress and reduce the fatigue life of the steering arm.
Consequence:
Steering arm could fail without warning resulting in loss of steering control and possibly a crash.
Correction:
Install a redesigned steering arm.
Notes:
System: steering arm.vehicle description: heavy-duty trucks.

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