TM 10-3930-653-14&P (6)  Pinion shaft can be easily disassembled by removing knock-out  pin.    Remove  four  pinion  gears  and  two  side gears, along with thrust plates. Fig. 4-408.  Removing Pinion Gear and Side Gears (7)    Remove  pinion  gears  and  thrust  plates  from  pinion shafts. Fig. 4-409.  Disassembling Pinion Shaft and Pinion Gears (8)      Replace      ball      bearing      Inside   cross   case,   if defective.  To do so, use a suitable bearing puller. Fig. 4-410.  Differential Component Parts 1.  Ring gear 2.  Pinion gear 3.  Side gear 4.  Pinion shaft 5.  Cross case (Right & left) 4-190