Description
Rear Transfer Case Housing with Output Seal, 261XHD/263XHD | 2001-2007
The Merchant Automotive A11 Rear Transfer Case Housing is a direct replacement rear half for the NP261XHD and NP263XHD transfer case in 2001-2007 Chevy Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L Duramax diesel (LB7, LLY and LBZ) and the 8.1L gas engine. GM 12478092 is the factory rear half number for these 2001-2007 6.6L and 8.1L XHD trucks. It is cast in magnesium alloy to OEM specs and is used to repair cases damaged by pump rub, or to replace the rear housing when installing a pump upgrade. It comes with the driven sprocket support bearing and slip yoke bushing already installed, plus a new rear output seal. No core charge.
If you are replacing the rear case to repair or prevent a pump rub failure, we recommend our Merchant Automotive Transfer Case Pump Upgrade Kit . The kit is made for 1998-early 2007 GM transfer cases that are susceptible to pump rub, and it is a good time to install it while the case is apart.
Product details
- Direct replacement A11 rear housing for the NP261XHD and NP263XHD
- Cast in magnesium alloy to OEM specs
- Driven sprocket support bearing and slip yoke bushing preinstalled
- Includes a new rear output seal
- No core charge
- (1) Magnesium rear case housing, 261XHD/263XHD (25903), with driven sprocket support bearing and slip yoke bushing installed
- (1) A13 rear output seal (22049)
- XHD only: this housing fits the NP261XHD (manual shift) and NP263XHD (electronic shift) used in 2001-2007 Duramax and 8.1L gas trucks.
Fitment / application
Rear Transfer Case Housing with Output Seal, 261XHD/263XHD | 2001-2007
Confirm year, engine, transmission or axle configuration before ordering.
Manufacturer product reference: Specifications and fitment.
