SECTION II TM 5-4210-220-20P (1) (2) (3) (4) (5) (6) ITEM SMR PART NO CODE   FSCM NUMBER DESCRIPTION AND USABLE ON CODES (UOC) QTY GROUP 26 FRONT AXLE FIG. 159 DIFFERENTIAL LOCK-UP SHIFT UNIT 1    XD0ZZ    52304 63028 NUT 7/16"-20 UNF- "CONELOK"........................................... 2 2    XD0ZZ    52304 119857 FLATWASHER 7/16" ............................................................. 2 3    XD0ZZ    52304 081518 SPACER................................................................................ 2 4    XD0OO  52304 73503 AIR SHIFT UNIT ASSEC ....................................................... 1 5    XD0ZZ    52304 32826 PACKING, PREFORMED PUSHROD.................................... 1 6    XD0ZZ    52304 73497 PUSHROD............................................................................. 1 7    XD0ZZ    52304 73494 SPRING COMPRESSION ..................................................... 1 8    PB0ZZ    52304 73495 PISTON STOP ...................................................................... 1 9    XD0ZZ    52304 73491 BOLT..................................................................................... 4 10    XD0ZZ    52304 82428 ASSEMBLY SHIFT ................................................................ 1 11    PB0ZZ    52304 73481 BEARING,SLEEVE................................................................ 1 12    XD0ZZ    52304 73498 PIN,CLEVIS........................................................................... 1 13    XD0ZZ    52304 73456 PIN-ACTUATING LEVER ...................................................... 1 14    XD0ZZ    52304 73486 ASSEMBLY - SHIFT HOUSING COVER ............................... 1 15    PB0ZZ    52304 73481 BEARING,SLEEVE LITE ....................................................... 1 16    XD0ZZ    52304 28325 PLUG..................................................................................... 1 17    XD0ZZ    52304 88053 CAPSCREW.......................................................................... 7 18    PA0ZZ    52304 73488 GASKET................................................................................ 1 19    PA0ZZ    52304 58309 CAPSCREW.......................................................................... 1 20    PA0ZZ    52304 56659 PACKING,PREFORMED....................................................... 1 21    PB0ZZ    52304 84803 BELL CRANKLEVER & PIN & BLOCK................................... 1 22    XD0ZZ    52304 32832 PACKING,PREFORMED....................................................... 1 23    XD0ZZ    52304 96916 OILER-FELT, PISTON........................................................... 2 24    XD0ZZ    52304 73493 PISTON ................................................................................. 1 25    XD0ZZ    52304 32825 WASHER - PUSH ROD ......................................................... 1 26    XD0ZZ    52304 73496 LOCKNUT - PUSH ROD........................................................ 1 27    PA0ZZ    52304 73492 PACKING,PREFORMED....................................................... 1 28    XD0ZZ    52304 73490 CYLINDER COVER ............................................................... 1 29    XD0ZZ    52304 47641 LOCKNUT ............................................................................. 4 END OF FIGURE 159-1