Mack Trucks announced last week that its Hagerstown, MD, manufacturing facility will begin assembling all Mack heavy-duty drive axles and machining all Mack carrier housings. Hagerstown produces all Mack engines and transmissions.

The additional manufacturing is part of a $30 million investment, Mack said.

“Coming on the heels of the $8 million investment that brought production of the mDrive transmission to Hagerstown last year, this decision is another indication of our commitment to excellence in integrated powertrain design and manufacturing,” said John Walsh, Mack vice president, marketing.

In addition to bringing drive axle operations to Hagerstown, the investment will also be used for upgrades to the engine assembly process, and centralization of aftermarket core warehousing operations. Preparation for the axle operations is underway, with full implementation scheduled for 2015.