GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Sonoma Pickup - 4WD 🢒 Driveline/Axle 🢒 Transfer Case - NVG 233/243-NP1 (Two Speed Selectable) 🢒 Transfer Case Disassembled View
Figure 1:

Case Components
Object Number: 572108 Size: LF
(1)Input Bearing Retainer Seal
(2)Input Gear Bearing Retainer Bolt
(3)Input Bearing Retainer
(4)Input Bearing Retaining Ring
(5)Front Input Bearing
(6)Bearing Retainer Ring
(7)Switch Seal
(8)Vacuum Switch
(9)Shift Rail
(10)Range Shift Fork
(11)Mode Shift Fork Side Pad
(12)Mode Shift Fork Center Pad
(13)Shift Fork Spring
(14)Shift Fork Pin
(15)Mode Shift Fork
(16)Sector Shaft
(17)Front Output Shaft Seal
(18)Front Output Bearing Retaining Ring
(19)Front Output Bearing
(20)Annulus Gear
(21)Annulus Gear Retainer Ring
(22)Drive Chain
(23) Detent Plunger
(24)Detent Plunger Spring
(25)Detent Plunger Bolt O-Ring
(26)Detent Bolt
(27)Encoder Motor
(28)Encoder Motor Bolt
Figure 2:

Rear Case and Drivetrain Components
Object Number: 7239 Size: LF
(1) Retainer, Rear Output Shaft
(2) Bolt, Retainer Housing
(3) Bearing, Front Output Shaft
(4) Retaining Ring, Main Shaft Rear Bearing
(5) Bolt, Extension Housing
(6) Extension, Rear
(7) Bushing, Rear Extension
(8) Seal, Rear Mainshaft
(9) Sensor, Speed
(10) Sprocket, Drive
(11) Main Shaft
(12) Case, Rear Half
(13) Seal, Oil Pump
(14) Oil Pump
(15) Bolt
(16) Wheel, Speed Sensor Reluctor
(17) Tube, Oil Pump Suction
(18) Bolt
(19) Seal, Oil Pump Suction Tube
(20) Retaining Ring, Speed Sensor Reluctor Wheel
(21) Retaining Ring, Speed Sensor Reluctor Wheel
(22) Threads, Front Output Shaft
(23) Shaft, Front Output
(24) Bearing, Front Output Shaft Rear
(25)Oil Pump Suction Hose
(26) Plug, Oil Fill
(27) Magnet
(28) Screen, Oil Pump
(29) Dowel, Case Half
(30) Washer, Case Half
(31) Bolt
(32) Spacer, Sprocket Bearing
(33) Retaining Ring, Planetary Carrier
(34) Retaining Ring, Planetary Carrier Shaft
(35) Thrust Washer, Input Gear
(36) Gear, Input
(37) Bearing, Input Gear
(38) Thrust Washer, Input Gear
(39) Planetary Carrier
(40) Sleeve, Range
(41) Retaining Ring, Synchronizer
(42) Spring, Synchronizer
(43) Hub, Synchronizer
(44) Spring, Synchronizer
(45) Sleeve, Synchronizer
(46) Ring, Synchronizer Blocker