NP 233 Transfer Case Rebuild Kits and Parts

Are you having problems with your NP233 transfer case and need a rebuild kit or replacement parts?  We offer quality professional rebuilt NP 233 transfer case parts and rebuild parts kits that are designed to be top of Chevrolet NP233C Transfer Case Partsthe line overhaul kits. The New Process 233 series transfer case started to be installed in the mid sized GM Sonoma and Jimmy, Chevrolet S10 and compact Blazer in 1992. This is a part time electric shift transfer case.  Need to save money give us a call and let us help, ask about good take out hard parts.

A cross reference table is provide to assist you in identification of your transfer case. Check tag located on rear of unit for model number. An illistrated drawing is provide below to assist you in parts identification, ordering and assembly. Back to transfer case parts availability page.  Find detailed assembly drawing to assist you in parts identificatioin and re assembly sequence.  Sometimes we can supply good used take out parts to save you time and money.  Don't see what you need just give us a call toll free 800-216-1632.  If you decide to replace your NP 233 transfer case with a remaufactued unit with a 12 month warranty see our complete list of transfer cases for Chevrolet/GMC vehicles.  All rebuilt transfer case get new seals, bearings, chains, fork pad, encoder motors and viscous couplers.  All shafts, slider, hubs and planets are inspect to ensure proper factory spec'd tolerances are maintained. All units are tested at the factory prior to shipment.

NP 233 Transfer Case Rebuild Kits and Parts Products 

New Process Model 233
Part-Time Transfer Case Electric Shift
1992 - On GMC & Chevrolet Sonoma, S10, Compact Blazer & Jimmy Recommended fluid for NP233-- ATF





TRS-BK230A Rebuilder Kit - Bearings, Gaskets & Seals, Small Parts and Pads, 24mm wide input bearing (GM & Isuzu) w/BD50-8 Input Bearing


TRS-BK230 Rebuilder Kit - Bearings, Gaskets & Seals, Small Parts and Pads, 16mm wide input bearing (GM & Isuzu) w/6010N Input Bearing


TRS-BK430 Rebuilder Kit - Bearings, Gaskets & Seals, Small Parts and Pads (Dodge)    
TRS-TSK233 Overhaul Kit - Gaskets, O'Rings and Seals (GM & Isuzu)  


TRS-TSK233D Overhaul Kit - Gaskets, O'Rings and Seals (Dodge)    
201207C Adapter to Transfer Case Gasket  


201032 Input Gear Seal  


201040 Front Output Shaft Seal 38mm I.D.


201040A Front Output Shaft Seal 28mm I.D.


45551B Rear Output Shaft Seal 27 Splined Shaft


34743A Rear Output Shaft Seal 32 Splined Shaft


TRS-44066 Extension Housing Bushing 1.50" ID 27 Splines


TRS-331066 Extension Housing Bushing 32 Splines


201501 Input Ball Bearing BD50-8


201506 Input Ball Bearing 6010N


K201300 Fork Pad Kit  


TRS-352850A Mode Fork Iron Casting #16196    
TRS-351850 Mode Fork 30 Teeth  
TRS-352849A Range Fork Aluminum Cast #17833    
TRS-351645K NP233 Range Slider Hub    
TRS-351646 Mode Slider 24 Teeth


TRS-352646B Mode Slider 30 Teeth  
TRS-351701K Mode Assembly (complete) 24 Teeth  
TRS-351701 Mode Syncro 60 Teeth  
TRS-351701A Mode Syncro    
TRS-351588A Planet (6 Pinion) used with .630 wide 6010-N input bearing    
TRS-492420 Shift Motor Remanufactured  Square 7 Male Connector Core charge $48.00  camra.jpg
TRS-492421 Shift Actuator (GM)    camra.jpg
TRS-492436 Speed Sensor  (K models up to 2000), S Models up to 2005    
TRS-351500 Oil Pump Assembly    
TRS-351760-2 Case Half (Rear)    
TRS-351772A Tail Housing (large seal)    
TRS-351806 Driven Sprocket    
TRS-HV022 Drive Chain 1.25" Wide- 31 Links 62 Pins, 1/2" Pitch, Round Pins


TRS-HV027 Drive Chain 1" Wide - 31 Links 62 Pins, 1/2" Pitch, Round Pin


Illustration click to enlarge

np233 gm transfer case parts illustration

 np233 shift motor

NP233 encoder motor





np233 gm shift actuatorShift Actuator GM









Other model transfer case parts