STEERING WHEEL RETAINING NUTS MAY HAVE BEEN IMPROPERLY INSTALLED AND/OR TORQUED.
RENEW AND RETORQUE STEERING WHEEL RETAINING NUTS.
The 1989 Mack R Series has 2 NHTSA recall campaigns affecting an estimated 16,100 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.
STEERING WHEEL RETAINING NUTS MAY HAVE BEEN IMPROPERLY INSTALLED AND/OR TORQUED.
RENEW AND RETORQUE STEERING WHEEL RETAINING NUTS.
TORQUE ROD BOLTS ARE GRADE 2 INSTEAD OF GRADE 5, WHICH IS NOT TO SPECIFICATION, AND COULD FAIL.
BOLT FAILURE COULD ALLOW THE REAR AXLE TO SHIFT; THISCOULD ADVERSELY AFFECT TRUCK CONTROL AND COULD RESULT IN A CRASH.
REPLACE TORQUE ROD BOLTS WITH BOLTS OF THE PROPER SPECIFICATION.
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1989 Mack R Series as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.