TM 10-3930-660-34 9-5 .  REAR DIFFERENTIAL CARRIER ASSEMBLY - REPLACE/REPAIR/ADJUST (Cont’d) e. If number on spigot end of new bevel pinion is a plus (+) ,  add number to standard shim pack (34) thickness calculated in STEP c .  If new pinion cone number is a minus (-) ,  subtract new pinion cone number from standard shim pack (34) thickness calculated in STEP c. This is the thickness of the new shim pack with cone variation EXAMPLES: 1. Old Shim Pack Thickness 0.030 Old Bevel Pinion Spigot End Number ,  PC+2 - 0.002 Standard Shim Pack Thickness 0.028 New Bevel Pinion Spigot End Number ,  PC+5 + 0.005 New Shim Pack Thickness 0.033 2. Old Shim Pack Thickness 0.030 Old Bevel Pinion Spigot End Number ,  PC-2 + 0.002 Standard Shim Pack Thickness 0.032 New Bevel Pinion Spigot End Number ,  PC+5 + 0.005 New Shim Pack Thickness 0.037 3. Old Shim Pack Thickness 0.030 Old Bevel Pinion Spigot End Number ,  PC+2 - 0.002 Standard Shim Pack Thickness 0.028 New Bevel Pinion Spigot End Number ,  PC-5 - 0.005 New Shim Pack Thickness 0.023 9-19