Description
Warranty & Shipping
Product Reviews
Q&A
Vehicle Fit

This new 4x4 transfer case housing repair kit is a high quality, aftermarket replacement part.

Specifications:

  • Transfer Case Rear Housing Repair Kit
  • Replaces dealer part numbers: 12473226, 12474949
  • Includes redesigned clips to hold the oil pump properly
  • Direct replacement
  • Built to strict quality control standards
  • Fits models with the following GM RPO Codes:
    • "NP2" - Manual Shift 2-Speed Transfer Case
    • "NP8" - Push-Button Control 2-Speed Transfer Case
NOTE: For 2007 Silverado/Sierra Models: This part fits Classic Body Style models only. Classic Body Style has a crease down the center of the door shell. New Body Style has a smooth door skin.

This transfer case housing repair kit makes a great replacement and has good cost savings over dealer units.

Item Condition: New

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

4.67/ 5.0
6 reviews
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I sent it back, not what I was expecting, I need a transfer case
I thought it was a whole transfer case, that is what Im needing
June 25, 2017
The new transfer case rear housing shipped fast, fits well, and works good. The only thing I could think of that would make it more convenient would be to include a new gasket for the transfer case to transmission connection. I would also like to see gaskets for the fill and drain plugs. I would recommed this to anyone in need of a new housing.
July 28, 2017
transfer case
great price on time shipping installed with no problems
August 30, 2017
Transfer case
Best product very affordable priceWrite your review here. It must be at least 50 characters long. Consider whether you would recommend this product and what you like or dislike about it.
August 31, 2017
No Instructions
The part itself seems like a good deal but it came with no instructions. When I called to ask about it I was told that you do not have instructions and I should go on YouTube and look for a video. It came with four clips, one being larger than the others and I do not know which column to put the big clip in?
January 8, 2018
Very good customer service on the phone and internet. Prompt shipping of product.
June 21, 2018
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
Does this include the rear transfer case housing ?
Bruce L February 8, 2017
Yes, the kit includes the rear housing, the aft carrier bearing and seal, all the plugs required, as well as new key spacers for the oil pump.
Timothy D February 9, 2017
This set will include the Case Housing, Bearing, Bushing, Rubber Plug, Steel Drain Plug with Seal, Large Clip, Small Clip, Seal.
Alex P February 14, 2017
sealant type for the housing installation?
Michele R May 22, 2017
Good Afternoon, The ultra grey RTV sealer is fine but you will need the special washers for the housing bolts.
Christina S May 22, 2017
I use the orange permatex gasket goo. Its probably overkill but its good to 650 degrees f. I think the blue is only good to 250 degrees f.
Jason M May 22, 2017
I used a basic black gasket sealant in a tube along with the actual gasket itself you can get at Auto zone, advance auto or any auto parts store. Just be careful you dont tear the gasket upon putting the case back on
Craig M May 22, 2017
Cost to ship to Alberta T5J?
IAIN C June 6, 2017
The shipping charge would be an additional 66.28 USD.
Alex P June 6, 2017
I have been told the chain wore a hole in my case. Any ideas why? Can I just replace the housing?
Buzz G June 29, 2017
You may be able to replace just the housing, but if the chain wore a hole in the case other parts may be required for proper repair.
Alex P June 29, 2017
2002 - 2007 GM 1500 4x4 transfer case oil pump cog eventually wears a hole in the transfer case housing. I ordered Part# ATFC00001 Transfer Case Rear Housing Repair Kit. The kit contains small clips that keep the sharp edge of the oil pump cog from doing it again.
Dennis W June 30, 2017
Im not sure. A hole developed in the upper area of mine and when I took off housing the chain was loose. You can replace the housing, which if you have a floor jack and the right tools (I learned how by watching youtube videos) you can do it within a day, time permitting.
Craig M July 1, 2017
Usually the pump shifting side to side is what rubs a hole
Steve S July 3, 2017
does this fit the duramax also?
Samuel S August 19, 2017
Is this replacement case magnesium or aluminum?
Bryan B November 29, 2017
Aluminum and fits perfectly
M A November 29, 2017
This is aluminum, the magnesium ones are only from GM. I suggest definitely using a pump rub kit which is a plate and not using the metal tabs.Enter an answer to this question.
S I November 29, 2017
This is an aluminum transfer case housing!
Tim K November 29, 2017
Does this kit include the rear output bushing preinstalled in the case?
Rob B November 30, 2017
No but it is included. Very easy to install
E C November 30, 2017
Output bushing is not preinstalled in case
T A November 30, 2017
No, youll have to install the front output shaft rear bearing, the rear bushing and rear output shaft seal yourself. I used a bearing drive set to install all three.
Steve M November 30, 2017
Hey Rob the bushing is not pre installed you have to put that in yourself.
H I December 1, 2017
Its included in the kit but not pre-installed. Also make sure you dont have a Duramax with the Allison trans, this is the wrong transfer case half for that...
Dave W December 1, 2017
The bushing is not pre-installed, but you may install it upon receipt.
Alex P December 1, 2017
Yes
S T December 2, 2017
What tools will I need to take my transfer case out fix it and put it back in?
Aaron J May 1, 2018
There’s a YouTube video. The hardest part is the interior clip
Raymond F May 1, 2018
Standard metric wrenches and sockets will get the transfer case out of the vehicle and taken apart. When you reassemble the case you may need a tool to install the roller bearing into the case. You need to remove the crossmember and support the transmission while you handle the transfer case. The key to this job is to have access to a car lift and a transmission jack of some sort to handle the very heavy case when it is separated from the transmission. I would not want to do this job laying on my back on the garage floor.
S T May 2, 2018
Does the transfer case need to be removed to install this kit, or can it be done in the vehicle?
Tony M July 31, 2018
Hello, It would be easier for the case to be removed but it is not required.
Emma F July 31, 2018
Has to be removed. There’s a locking pin that goes in.
Raymond F July 31, 2018
You will need to remove the transfer case. Pretty straightforward job. Removing the two driveshafts takes no time at all. Recommend usining a transmission jack to remove transfer case. Two people will make this much easier. Also, you may want a stubby 15mm wrench to get to the top bolt of the transfer case. Hope this helps.
Matt Y August 1, 2018
I do not believe there is enough clearance to split the cases while the unit is still in the vehicle
S T August 1, 2018
Year Make Model Description
2002-2007Cadillac Escalade Cadillac Escalade Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2003-2007Cadillac Escalade ESV Cadillac Escalade ESV Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2002-2007Cadillac Escalade EXT Cadillac Escalade EXT Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2007Chevy Avalanche Chevy Avalanche Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2002-2006Chevy Avalanche 1500 Chevy Avalanche 1500 Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2002-2006Chevy Avalanche 2500 Chevy Avalanche 2500 Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2000Chevy K3500 Truck Chevy K3500 Truck Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case)
1999-2006Chevy Silverado 1500 Chevy Silverado 1500 Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2007Chevy Silverado 1500 Classic Chevy Silverado 1500 Classic Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2001-2003Chevy Silverado 1500 HD Chevy Silverado 1500 HD Rear Transfer Case Housing Repair Kit for Models with 4 Speed Automatic Transmission & RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2005-2006Chevy Silverado 1500 HD Chevy Silverado 1500 HD Rear Transfer Case Housing Repair Kit for Models with 4 Speed Automatic Transmission & RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2007Chevy Silverado 1500 HD Classic Chevy Silverado 1500 HD Classic Rear Transfer Case Housing Repair Kit for Models with 4 Speed Automatic Transmission & RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
1999-2004Chevy Silverado 2500 Chevy Silverado 2500 V8 6.0L Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2001-2006Chevy Silverado 2500 HD Chevy Silverado 2500 HD V8 6.0L Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2007Chevy Silverado 2500 HD Classic Chevy Silverado 2500 HD Classic V8 6.0L Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2001-2006Chevy Silverado 3500 Chevy Silverado 3500 V8 6.0L Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case)
2001-2006Chevy Silverado 3500 Chevy Silverado 3500 V8 6.6L Turbo Diesel Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case)
2001-2006Chevy Silverado 3500 Chevy Silverado 3500 V8 8.1L Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case)
2007Chevy Silverado 3500 Classic Chevy Silverado 3500 Classic Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case)
2000-2007Chevy Suburban 1500 Chevy Suburban 1500 Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2000-2007Chevy Suburban 2500 Chevy Suburban 2500 Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2000Chevy Tahoe Chevy Tahoe (excluding Z71 Models) Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2001-2007Chevy Tahoe Chevy Tahoe Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2000GMC K3500 Truck GMC K3500 Truck Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case)
1999-2006GMC Sierra 1500 GMC Sierra 1500 Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2007GMC Sierra 1500 Classic GMC Sierra 1500 Classic Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2001-2003GMC Sierra 1500 HD GMC Sierra 1500 HD Rear Transfer Case Housing Repair Kit for Models with 4 Speed Automatic Transmission & RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2005-2006GMC Sierra 1500 HD GMC Sierra 1500 HD Rear Transfer Case Housing Repair Kit for Models with 4 Speed Automatic Transmission & RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2007GMC Sierra 1500 HD Classic GMC Sierra 1500 HD Classic Rear Transfer Case Housing Repair Kit for Models with 4 Speed Automatic Transmission & RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
1999-2004GMC Sierra 2500 GMC Sierra 2500 V8 6.0L Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2001-2006GMC Sierra 2500 HD GMC Sierra 2500 HD Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2007GMC Sierra 2500 HD Classic GMC Sierra 2500 HD Classic V8 6.0L Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2001-2006GMC Sierra 3500 GMC Sierra 3500 Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case)
2007GMC Sierra 3500 Classic GMC Sierra 3500 Classic Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case)
2000GMC Yukon GMC Yukon Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case) (excluding Denali Models)
2001-2007GMC Yukon GMC Yukon Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2000-2007GMC Yukon XL 1500 GMC Yukon XL 1500 Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
2000-2007GMC Yukon XL 2500 GMC Yukon XL 2500 Rear Transfer Case Housing Repair Kit for Models with RPO Code NP8 (Push Button, 2 Speed Transfer Case) or RPO Code NP2 (Manual Shift, 2 Speed Transfer Case)
Part #: 1ATFC00001


Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

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