New 263XHD Transfer Case - medium
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New 263XHD Transfer Case, LB7 LLY LBZ 2001-2007, Duramax

No Core Charge! * Does not include encoder motor
Part Number: 10604  
No Core Charge! * Does not include encoder motor
Brand new 263XHD Transfer Case

Why Choose Our Transfer Case?

Includes Our Transfer Case Pump Upgrade:
The GM transfer cases use a gear pump inside the case that is driven off the mainshaft. The pump forces oil to the planetary as well as the drive sprocket sleeve. There are 5 tabs around the housing that fit into spots in the rear housing to position the pump. Over time, the pump can start to wear on the rear housing. This issue is referred to as "pump rub". Our Transfer Case Pump Upgrade resolves this problem. Protect your investment by preventing this condition.
Comes with Magnetic Drain Plugs:
Magnetic Drain Plugs catch small debris and help extend fluid life. Kit contains a Magnetic Drain plug and a new fill plug made out of a high strength corrosion resistant 304 Stainless Steel.

Shipped with MA Performance Transfer Case Oil:
  • Promotes transfer case performance
  • Increases shifting performance
  • Dramatically reduces wear
  • Increases component efficiency
  • Blended specifically for use in GM transfer cases
  • May be used in GM, Ford and Chrysler transfer cases
  • For use in diesel or gas transfercase
  • Cost effective upgrade for Auto Track II
  • Performs in manual or electric shift applications
  • Reduces irritating drive shaft clunk
  • Increases drive line performance by reducing clutch chatter
  • Drastically reduces wear on internal components & seals
Note: Transfer Case will be shipped with 2 Quart (64 fluid oz.) bottle. CASE WILL NOT BE FILLED WHEN RECEIVED. One Transfer Case will use 64 fluid oz
2 years / unlimited miles
 Average Rating:  5 Star Rating
 based on 5 Customer Reviews  
Write A Review
   Perfect Fit, October 1, 2018  By Anonymous (GRande Prairie)(Verified)
Quick Shipping, perfect fit, Great Quality, couldn't ask for anything better
   Duramax t case, June 26, 2018  By Anonymous (IVINS, UT)(Verified)
Great part
All the upgrades . Weill worth the $
Perfect fit no leaks etc . Very satisfied much better than stock g.m one
   Improved Tranfer Case, September 26, 2017  By Tom (Foster, VA)(Verified)
This case is an improved version of the OEM case. If GM had this case supplied with the vehicle, there would be no need to have to replace an inferior product. As typical of General Motors, they save a nickel, at the expense of the customer. Thanks to Merchant Automotive for product improvement.
   New Transfer Case, August 20, 2017  By JAMES (Boulder City, NV)(Verified)
The transfer case arrived in perfect shape. One nice touch was all but one of the wiring sheet metal attachments were included! Nice! Installed and I'm off and running. Truck is so much smoother. No transfer case "clunks" after stops. Not a lot of miles on it yet, but so far, I'm really pleased with the product.
   New 263XHD Transfer Case, August 1, 2017  By Bruce (Belen, NM)(Verified)
Transfer case works great. I already have over 3000 miles since I did the install. It is comforting to know that this item is NEW! I might also add that the staff at Merchant was/is very helpful and the whole ordering process was very thorough, and fast delivery. Good job and thanks again!