NP136 Chevy Transfer Case

Below you will find a detailed list of NP136 transfer case parts that includes complete rebuilt Transfer Cases, bearing rebuild kits, gaskets, seals, thrust washers, bushings individual bearing, forks and sliders, oil pump, planets, chain, sprockets and miscellaneous parts. If you need more information or cannot find the parts you need give us a call, if you would like to save money, ask about our good take out parts (GTO), they are inspected and guaranteed.

Use our online shopping cart, just click the part number and see additional information, add to cart or proceed to check out. If you need more information or cannot find the parts you need give us a call 888-824-2014.

Having issues diagnosing problems with your NP136 transfer case? We can help free knowledgeable technical support! We have a large inventory of rebuilt NP136 transfer cases plus Transfer Case parts. Our factory rebuilt re-manufactured.

Transfer Cases are tested before leaving the factory. This transfer case was manufactured by New Venture Gear. This model is chain driven. The NP136 is AWD with electric clutch pack. The NP136 was used in Chevrolet Astro, GMC Safari vans and Oldsmobile Bravada Vans. This unit was utilized beginning in 1998.

The NP136 transfer cases was manufactured with electrical shift encoder motors, this unit has two different drive ranges 2 high and 4WD (run at reduced speeds) with the front output drop on the driver side. This unit has a 27 spline front output and utilizes a rear slip yoke.

If you have purchased your van used the very first order of business is to double check the tire diameters. Used car dealers may have mismatched the tires to make the sale. Mismatched tires will cause the NP136 transfer case to fail.

The NP136 transfer case unit has a couple of problems, it utilizes a viscous coupler clutch system that can fail. One way to recognize this failure mode is clicking sounds when turning on dry asphalt or concrete surfaces. Viscous coupler failure is attributed to excessive heat build up. The second problem is that the oil circulation pump on NP136 can wear a hole in the case, we provide a transfer case saver to prevent this from happening. Once you have a hole in the case fluid will be lost and the case will fail. Don’t leave home without our case saver, it’s only a matter of time. Recommended fluid for the NP 136 transfer case is GM part number 12378396.

We can provide a rebuilt NP136 transfer cases with a 12 month warranty we also offer all parts required to rebuild your unit, we have new parts we can also provide good used takeout parts to save you money!

Free NP136 Transfer Case parts illustration

Below we provide a NP136 parts illustrations to assist you with the correct identification of the parts you need. Select the parts you require from the the list below and give us a call. To speak to a Drive Train Expert or to place and order call toll free 888-824-2012, buy factory direct and save money!

Application Model Years
Astro & Safari Van1999-UP
Bravada 1998-UP
 
Transfer-Cases-Front-Differentials-Drivetrain-Midwest-Transmission-np136-img.jpg

This information tag is located on rear of transfer case near where the driveshaft exits.

 

Need Stronger Parts?

Midwest Transmission can Cryogenic Treat any shaft or gear. This cryo treatment will add 30% in component strength. Call 888-824-2012 for a quote.

Use our online shopping cart, just click the part number and see additional information, add to cart or proceed to check out.

Rebuilt Tested NP136 Transfer Cases 12 Month Warranty

Img# Description Part Number
Transfer Case Chevrolet GM 1998 UP TCGM032
Core deposit on above Transfer Case

Rebuilt Overhaul Bearing Kits NP136 Transfer Case

Img# Description Part Number
N.I. NP136 1998 UP MWT-333
Case Protector Plate – Anti Wear (Prevents Pump Lug Wear in Case) MWT52007

Gaskets Seals, & Filter NP136 Transfer Case

GASKET & SEAL KITS

Img# Description Part Number
N.I. NP136 TSK-136

FILTERS

Img# Description Part Number
012D Pump Screen (Filter) NP4338943

SEALS

Img# Description Part Number
070A Input Seal 22452
081A Front Output Seal MWTNV411081
074A Rear Output Seal NV22507

Bushings & TH Washers NP136 Transfer Case

BUSHINGS

Img# Description Part Number
066A Extension Housing (2.010”OD) 100408

WASHERS

Img# Description Part Number
N.I. Planet Thrust Washer (Plastic) NP4338908

Bearings NP136 Transfer Case

Img# Description Part Number
N.I. Shift Shaft Bearing FC68828
250B Clutch Drum Bearing TRS411250
240C Input Bearing (Inner) (38mm OD) DB59856
268C Input Bearing (.630”Wide) 6010N
264D Front Output Shaft Bearing (Front) 6207N
N.I. Front Output Shaft Bearing (Rear) Needle SCE2416
266B Main Shaft Bearing (Front) 6011
269C Main Shaft Bearing (Rear) NV20908

Shift Forks & Sliders NP136 Transfer Case

SLIDERS

Img# Description Part Number
645B Range Slider & Hub NV17982-U

FORKS

Img# Description Part Number
850A Fork (Clutch Pack Apply) NV246CP-U
N.I. Fork Insert (29mm Long) NP4338376
N.I. Fork Insert (52mm Long) NP416769

Pump, Planet & Chain NP136 Transfer Case

PUMPS

Img# Description Part Number
500C Pump Assembly NV29191

PLANETS

Img# Description Part Number
N.I. Planet (6 Pinion) NV17869

CHAINS

Img# Description Part Number
700D Chain (1.00 inch Wide) 49 Links CL10-062
Chain (1.00 inch Wide) CL10-071

Miscellaneous Components NP136 Transfer Case

Img# Description Part Number
N.I. Case Protector Clip – Anti Wear (Prevents Pump Lug Wear in Case) TRS411460
118B Friction Plate A411101
138B Steel Plate 12120
420A Shift Motor OE12474041 UMM1235
860C Snap Ring, Rear Main Shaft (Outer) 482860
412A Speed Sensor GM12376520
490A Vent Tube (Plastic) 411490
UMM1235 astro 1999-2005

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