Meritor's 13X is a lighter-weight drive axle platform designed for Class 6 and 7 applications.

The 13X drive axle is engineered for a variety of medium-duty applications including pick-up and delivery, beverage, utility, school bus, construction, and ambulance. It uses the same housing, yokes and seals from the 14X drive axle platform but has been made lighter weight.

The 13X is available in a wide variety of ratios from 3.90 to 6.50 and with gross axle weight ratings between 17,000 and 21,000 pounds. It is offered with standard differentials and is compatible with air-drum or hydraulic-disc brakes as well as parking brakes.

The 14X single-axle platform will continue to be available for application options that the 13X will not address, including ratios or driver-controlled differential locks, according to Meritor.