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NV246 Transfer Case

April 18, 2016 - Author: Courtney

Question: I have a 1999 4WD Automatic Chevy Silverado in which the 4 wheel drive service light is on. It will not engage to the 4 wheel drive. I like to know what that would be causing that. I also like to know what kind of transfer case I have as well.

Answer: This is a NV246 transfer case and they have many issues. As far as the service 4wd lights, it could be many things. They have dash switch problems, module issues and encoder motor issues. I would start by checking the fluid level and condition of the fluid. The rear case is subject to oil pump rub from the inside and it will create a pin hole in the rear housing and even though you may not have seen the leak it will while driving and run the transfer case dry.

If the transfer case is full and the fluid color is still blue then I would suggest getting it on a scanner and see if it is commanding the encoder motor to shift.

If the fluid is burnt or low it is more likely that the clutch pak is burnt up and out of range throwing the code and requiring a rebuilt.

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Upgrade Your Transfer Case

June 23, 2015 - Author: Courtney
Vehicle Manufacturer:
Vehicle Model:
Vehicle Year:
Engine Size:
Transmission Type:
Pickup Size:
3/4 Ton
4 Wheel Drive
I would like to double my transfer case, currently running the 241c. I would like to change to a gear driven transfer case, however I do not know which would work best for me.Answer:

A NP205 would be the best option… it is gear driven and a very good transfer case.

Order part number TCGM008A NP205 transfer case your cost $800 outright.

You will also need NP205 adapter to TH350 your cost $175.00

27 spline coupler your cost $125.00

Freight charges will be added.

The only other thing needed is a shifter and drive shaft mods… best on the shifter is to source a aftermarket twin stick.

Visit our website for more information.

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2003 Hummer H2 need Transfer Case

October 10, 2014 - Author: BartBarton

I have a 2003 Hummer H2 4WD

Question:  I would like to know if you have PFU315-5 in stock, so I can offer it to my customer.

Answer:  It will take us a few days to build and test Part number PFU315-5 is BW4484.

Transfer case your cost is $1,460.00. plus $600.00 core deposit plus freight.

This unit has a one year warranty. If you need more technical information please give Scott a call 888-824-2-12 he is tech rep and can help you.




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Ford Explorer 1996 4.0L 4WD BW4405 Vibration Problem

May 13, 2014 - Author: BartBarton

I have Ford Explorer 1996 4.0L 4WD.

Question:  Trying to resolve a bw4405drive train vibration issue. Only occurs when front drive shaft is installed, and starts at about 50 mph. Bad vibration you can feel through the floor – can’t really go faster than 60 or vibration is too much. Pull the front drive shaft and it goes away. Have tried two replacement front driveshafts, one reman, the other new. There is no play that I can feel at either the transfer case output or the front end input. Trying to figure out if I have a front end, transfer case, driveshaft or cv shaft issue. Both cv shafts have been replaced. Driver’s is less than one year old. Passenger about five years old. Older truck that I need to keep driving for a while yet and really want to get this figured out. And don’t want to throw buckets of money at it but would like to get 4WD operational again. Driving with shaft out now. Any thoughts?

Answer:  You have the BW4405 transfer case. First thing we would suggest you check would be the tire diameter. It is very important that the tires all match in diameter.

The transfer case has a variable clutch pack in it and if the system is showing slippage (different tire diameter) it will be trying to engage and disengage the 4wd system and cause this issue.

Also this transfer case is known for rear case wear in the rear output bearing area. With the rear drive shaft off pull straight in and out on the rear yoke, you will notice play in and out and there shouldn’t be any. If this play is excessive you will want to address this also.

You  can visit our shop at 11071 93rd Avenue N Suite A Maple Grove, MN 55369 and we can help you diagnose the problem.  See the other parts we can provide on our web site


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1999 Chevrolet Silverado 1500 NP261 Transfer Case Problem

April 15, 2014 - Author: Courtney

I own a 1999 Chevrolet Silverado 1500 with NP261 Light Duty Transfer Case. Question: This is a very nice pickup I use 4WD sometimes in the winter month, with little off road activities. The transfer case lately has started jumping out of gear, Can you tell me what the problem might be? Answer: Based on our experience with the NP261 Light Duty the popping out of gear you mentioned is typically caused by problems associated with the input shaft, input bearing and or worn case where the input bearing rides. It will be necessary to remove the transfer case, dis-assembly and inspect the unit you should pay attention the the range hub and range fork for excessive wear, they may need to be replaced. You can see the parts that we can provide for repair of your NP261LDL transfer case on our site. A detailed parts assembly drawing is available.



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Transfer Case Maintenance and Service

February 3, 2014 - Author: BartBarton

Extend Life of Transfer Case with Maintenance and Service

Draining Fluid and replacing bw4407with fresh fluid really is a requirement and will add extra life to an expensive part. Over time additives within the fluid breakdown along with parts and component protections stops, small pieces of metallic and plastic wear away. Under some conditions i.e. bad weather, launching boats makes it possible for water to seep in to the unit. A very hot transfer case in chilly water can drawing in water thru seeping seals, contaminating the fluid and damaging shafts and bearings.

Fluid cools down the transfer case and it is components and lubricates gears, chain, shafts and bearings along with other parts. The transfer case does not have a filter and fluid needs to be change under normal use every 12 month generally, under intense use every 3 month, or in accordance using the manufactures owner’s handbook. Typical transfer cases hold in between 1.5 and 3 quarts of lubricant, check owner’s manual. We typically suggest automatic transmission fluid as lubricant but in a few case specialty dealer specific fluid is necessary, you should consult your owner’s manual. Or give us a call and take advantage of our experience and expertise.

One of the biggest problems with internal part damaged to transfer cases is started by uneven tire wear, or in most cases simply by used car dealers installing un-matched sets of tires. Be sure that you measure the OD tire dimension in  order to guarantee that they’re the same dimension.

For a detailed listing of replacement re-manufactured transfer cases see our web site. Our re-manufactured units have a 1 year unlimited mileage in 12 months warranty.


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Transfer Case

January 3, 2014 - Author: BartBarton

Transfer Case Causing You Problems?

Rebuilt 4WD transfer case, supplier for both cars and light, medium and large heavy duty trucks; also we supply part to assist you with your transfer case repair including bearing overhaul kits, chains, forks and even cases are available, some time we can provide good used parts to save money!

transfer cases

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