NP136 Chevy Astro and Oldsmobile Bravada Transfer Case Buy Factory Direct & Save, we Ship World Wide!

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

automatic transmission rebuilt

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 begining 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 driverside. 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 trDiscount on G6  partsansfer 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, see illustration, 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!

Select this link to see what models that use this Transfer Case.

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. See the complete line of products that we can provide at www.midwesttrans.com. To speak to a Drive Train Expert or to place and order call toll free 888-824-2012, buy factory direct and save money!

 

Applications Model Years  

np136 id tag sample

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

Discount on G6  parts
Astro & Safari Van 1999-UP
Bravada 1998-Up

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 IPart Number
YOUR COST
REBUILT TRANSFER CASES
Transfer Case Chevrolet GM 1998 UP MWTTCGM032
$666.67
Core deposit on above Transfer Case
$250.00

Rebuilt Overhaul Bearing Kits NP136 Transfer Case

IMG # DESCRIPTION IPart Number
YOUR COST
BEARING KITS
N.I. NP136 1998 UP MWT-333
$205.31
Case Protector Plate - Anti Wear (Prevents Pump Lug Wear in Case) MWT52007
$50.00

Gaskets Seals, & Filter NP136 Transfer Case

IMG # DESCRIPTION IPart Number
YOUR COST
GASKET & SEAL KITS
N.I. NP136 MWTTSK136
$29.93
FILTERS
012D Pump Screen (Filter) NP4338943
$5.33
SEALS
070A Input Seal 22452
$3.75
081A Front Output Seal MWTNV411081
$12.00
074A Rear Output Seal MWTNV22507
$21.50

Bushings & TH Washers NP136 Transfer Case

IMG # DESCRIPTION IPart Number
YOUR COST
BUSHINGS
066A Extension Housing (2.010” OD). 100408
$10.00
WASHERS
N.I. Planet Thrust Washer (Plastic) NP4338908
$4.00

Bearings NP136 Transfer Case

IMG # DESCRIPTION IPart Number
YOUR COST
BEARINGS
N.I. Shift Shaft Bearing FC68828
$10.67
250B Clutch Drum Bearing TRS411250
$8.98
240C Input Bearing (Inner) (38mm OD) DB59856
$6.96
268C Input Bearing (.630” Wide)
6010N
$20.66
264D Front Output Shaft Bearing (Front) 6207N
$12.66
N.I. Front Output Shaft Bearing (Rear) Needle SCE2416
$11.24
266B Main Shaft Bearing (Front) 6011
$25.93
269C Main Shaft Bearing (Rear) NV20908
$22.00

Shift Forks & Sliders NP136 Transfer Case

IMG # DESCRIPTION Part Number
YOUR COST
SLIDERS
645B Range Slider & Hub NV17982-U
$60.00
FORKS
850A Fork (Clutch Pack Apply) NV246CP-U
$300.00
N.I. Fork Insert (29mm Long) NP4338376
$2.00
N.I. Fork Insert (52mm Long) NP4167969
$1.00

Pump, Planet & Chain NP136 Transfer Case

IMG # DESCRIPTION IPart Number
YOUR COST
PUMPS
500C Pump Assembly NV29191
$56.65
PLANETS
N.I. Planet (6 Pinion) NV17869
$178.98
CHAINS
700D Chain (1.00 inch Wide) 49 Links MWTCL-062
$104.94
Chain (1.00 inch Wide) MWTCL-071
$90.90

Miscellaneous Components NP136 Transfer Case 

IMG # DESCRIPTION IPart Number
YOUR COST
MISCELLANEOUS COMPONENTS
N.I. Case Protector Clip - Anti Wear (Prevents Pump Lug Wear in Case) TRS411460
$4.94
118B Friction Plate MWTA411101
$8.00
138B Steel Plate 12120
$4.00
420A Shift Motor OE12474041 MWTUMM1235
$225.98
860C Snap Ring, Rear Main Shaft (Outer) 482860
$4.00
412A Speed Sensor GM12376520
$26.60
490A Vent Tube (Plastic) 411490
$5.00
UMM1235 astro 1999-2005

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Minimum order $25.00, Shipping and handling charges will be added.