FRONT AXLE MAITENANCE
Section I. DESCRIPTION AND DATA
Front axle maintenance procedures not covered in this section may be found in TM10-3930-660-20.
8-2. PRINCIPLES OF OPERATION.
a. Differential. The front differential provides the primary drive gear reduction. It is a single reduction carrier and is
manufactured by Rockwell. This carrier has a hypoid drive pinion (1) and ring gear (2) set and a no-spin unit (3) in
the differential assembly. A straight roller (spigot) bearing (4) is mounted on the head of the drive pinion (1). All
other bearings in the carrier are tapered roller bearings. The no-spin differential unit (3) is contained in the
differential case (5). When the carrier operates, the no-spin unit delivers one-hundred percent of the available
power to both drive wheels, yet automatically allows normal differential action when required.