Merchant Automotive Rear Transfer Case Housing - 261XHD, 263XHD | 2001 - 2007


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Rear Transfer Case Housing - 261XHD, 263XHD | 2001 - 2007
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Product Information


  • Direct Replacement
  • Cast To OEM Specs
  • Great For Pump Rub Prevention/Repair
  • No Core Charge


  • Cast In Magnesium
  • Slip Yoke Pushing And Driven Sprocket Support Bearing Included
  • Includes Limited Lifetime Warranty Against Pump Rub
  • Fits 2001-2007 Duramax Diesel Engine Trucks W/ an Allison Transmission


A11 263XHD/261XHD Rear Transfer Case Housing

If you are needing to replace the rear transfer case half on your 2001-2007 GM Duramax diesel, this Merchant Auto NP261XHD/NP263XHD Transfer Case Housing is exactly what you need. This rear transfer case half is casted to OEM specs out of Magnesium which has been proven to be superior when compared to cheap aluminum knockoffs. It is a direct replacement and an upgrade for your factory housing to prevent and repair cases that have been damaged by pump rub.

This replacement NP261XHD/NP263XHD Transfer Case Housing comes with a preinstalled driven sprocket support bearing and slip yoke bushing. You will need to supply your own rear output seal, drain and fill plugs. You can reuse your factory components, but we suggest purchasing a new Merchant Automotive Rear Output Seal and a Merchant Automotive Magnetic Drain Plug Kit to give your transfer case a complete refresh. Don’t forget your transfer case fluid! You will need 2 quarts to refill your transfer case and you can pick up our Merchant Automotive Performance Transfer Case Fluid to make things easy. This fluid is designed specifically for heavy duty transfer cases to ensure your new case is thoroughly protected.

If you are purchasing this rear case to repair or prevent a Pump Rub failure, we invite you to check out our complete Merchant Automotive Transfer Case Pump Upgrade Kit. This kit is all-inclusive and the perfect solution for 1998-early 2007 GM transfer cases that are susceptible to Pump Rub. This kit is perfect for installing when replacing the case half.

With the installation of the MA transfer case Pump Upgrade kit, you will have a LIMITED LIFETIME WARRANTY against pump rub. If your Allison transmission-equipped, Duramax diesel transfer case ever wears a hole in the new rear housing with the upgrade installed. We will buy you a new transfer case. The MA Lifetime Warranty only applies to installations with new rear housing.



Merchant Auto Pump Upgrade Installation Video

Truck U Segment On Merchant Auto Transfer Case Pump Rub Kit



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