Part 1
DISASSEMBLY
Position transfer case in a shallow drain pan. Remove drain plug and drain any remaining lubricant remaining in case.
COMPANION FLANGE AND EXTENSION HOUSING
1. Install two bolts 180° apart into the front output shaft companion flange.
2. Place holder (1) over the bolts (2) and against the companion flange.
3. Remove and discard the front companion flange nut.
4. Remove the companion flange from the front output shaft. It may be necessary to use Pinion Flange Remover 8992 to remove the companion flange.
5. Use a suitable chisel or pry tool to remove the rear extension housing (1) dust boot (2).
6. Use a suitable chisel or pry tool to remove the rear extension housing seal.
7. Remove rear extension (1) bolts (2).
8. Remove rear extension housing (2) from the rear case half. Tap extension once or twice with a plastic mallet to break sealer bead and loosen it.
OIL PUMP AND REAR CASE
1. Disengage the oil pump pick-up tube (2) from the oil pump (1).
NOTE: The oil pump pick-up tube seals to the oil pump with an o-ring. Verify that the o-ring was removed with the tube and is in good condition. Replace the o-ring if necessary.
2. Remove the oil pump (3) from the rear output shaft (2).
3. Remove rear case (2)-to-front case (1) bolts (3).
4. Remove the rear output shaft bearing inner snap-ring (3) from the output shaft (1) using suitable snap-ring pliers.
5. Remove the rear output shaft bearing inner snap-ring (3) from the output shaft (1).
6. Loosen rear case (2) with pry tool to break sealer bead. Insert tool at each end of case.
7. Unseat rear case from alignment dowels.
8. Remove the rear case (2) from the front case (1).
FRONT OUTPUT SHAFT AND DRIVE CHAIN
1. Remove the oil pick-up tube (3) and screen (2) from the front case half (1).
2. Remove the shift rail spring (2) from the shift rail (1).
3. Remove the front output shaft (1) drive sprocket (2) retaining ring (3).
4. Remove the rear output shaft (1) drive sprocket (2) retaining ring (3).
5. Pull front sprocket (3), rear sprocket, and chain (2) upward until clear of the front and rear output shaft sprocket splines.
6. Remove chain and sprockets as an assembly.