MACK issued a recall on the RB600 model

ON VEHICLES WITH MULTI-LEAF SPRING AND 18,000 LB. OR 20,000 LB. FRONT AXLES AXLES, THE SPRING EYE MAY CONTACT THE SPRING BRACKET WHEN THE MULTI-LEAF SPRING IS DEFLECTED TO ITS MAXIMUM LENGTH. SPRING BRACKET FAILURE WOULD CAUSE FRONT SPRING DISLOCATION AND CONSEQUENT STEERING IMPAIRMENT WHILE TURNING, RESULTING IN A POSSIBLE CRASH. CORRECTION: FRONT SPRING REAR BRACKETS WILL BE REPLACED WITH BRACKETS OF A REVISED DESIGN.