CRACK MAY DEVELOP ON STEERING ARM THAT COULD PROGRESS AND REDUCE THE FATIGUE LIFE OF THE STEERING ARM.
STEERING ARM COULD FAIL WITHOUT WARNING RESULTING IN LOSS OF STEERING CONTROL AND POSSIBLY A CRASH.
INSTALL A REDESIGNED STEERING ARM.
The 1986 Mack Rm has 2 NHTSA recall campaigns affecting an estimated 2,121 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.
CRACK MAY DEVELOP ON STEERING ARM THAT COULD PROGRESS AND REDUCE THE FATIGUE LIFE OF THE STEERING ARM.
STEERING ARM COULD FAIL WITHOUT WARNING RESULTING IN LOSS OF STEERING CONTROL AND POSSIBLY A CRASH.
INSTALL A REDESIGNED STEERING ARM.
THE STEERING SHAFT SPLINE ENGAGEMENT IS ONLY .52, THE RECOMMENDED ENGAGEMENT IS 2 INCHES.
UNDER IMPACTS SUCH AS ROAD POTHOLES, IT COULD RESULT INSHAFT DISENGAGEMENT. THE DRIVER WOULD IMMEDIATELY LOSE STEERING CONTROLWITHOUT WARNING AND VEHICLE CRASH COULD OCCUR.
REPLACE SHAFTS THAT MEASURE UNDER THE MINIMUM ENGAGEMENT DIMENSIONS WITH A LONGER SHAFT.
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1986 Mack Rm as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.