The 1987 Mack Dm Series has 4 NHTSA recall campaigns affecting an estimated 3,598 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.
AN INCORRECT HIGH PRESSURE POWER STEERING HOSE MAY HAVE BEEN INSTALLED.
UNDER CERTAIN CONDITIONS, HOSE COULD FAIL RESULTING INLOSS OF POWER STEERING ASSIST AND POSSIBLY AN ACCIDENT.
REPLACE INCORRECT POWER STEERING HOSES.
THE UNDERSIZED WELD ON THE REAR SUSPENSION BRACKETRY ATTACHMENT CAN CAUSE BRACKET FAILURE.
BRACKET FAILURE CAN ALLOW THE SPRING ASSEMBLY TO BERELEASED ONTO THE ROADWAY, POSSIBLY RESULTING IN LOSS OF CONTROL AND ANACCIDENT.
REPLACE ANY HOUSINGS THAT HAVE SINGLE PASS (UNDERSIZED) WELDS ON THE BRACKETRY ATTACHMENT.
FASTENERS THAT HOLD THE REAR WHEEL TO THE HUB AND DRUM ASSEMBLY MAY BE IMPROPERLY TORQUED.
AN UNDERTORQUED FASTENER WILL LOOSEN UP AND CAN RESULT INWHEEL SEPARATION, LOSS OF CONTROL, AND AN ACCIDENT.
PROPERLY TORQUE REAR WHEEL SPACE FASTENERS.
CROSS STEERING LEVERS MAY BE IMPROPERLY HEAT TREATED AND SUBJECT TO FAIL DURING NORMAL OPERATION.
SUCH FAILURE COULD CAUSE LOSS OF TRUCK CONTROL WITHOUTPRIOR WARNING AND RESULT IN A CRASH.
INSTALL NEW, PROPERLY HEAT TREATED STEERING LEVER.
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1987 Mack Dm Series as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.