Defect summary
THE PINCH BOLT USED TO RETAIN THE PITMAN ARM TO THE STEERING GEAR MAY NOT MEET THE HEAT TREAT SPECIFICATION FOR A GRADE 8 FASTENER AND MAY STRIP BEFORE PROPER TORQUE IS ACHIEVED.
Consequence
THE PINCH BOLT MAY FAIL CAUSING SEPARATION OF THE PITMANARM AND THE STEERING LINKAGE, AND LOSS OF STEERING CONTROL WHICH COULD RESULTIN AN ACCIDENT.
Remedy
REPLACE THE PINCH BOLTS WITH PROPERLY HEAT TREATED BOLTS.
Notes
SYSTEM: STEERING.VEHICLE DESCRIPTION: HEAVY TRUCKS (CLASS 8).
Source: NHTSA ODI recalls file, campaign 91V203000. Text as published by NHTSA.