Transfer Case & 4WD

NOTE: This upgrade kit MAY NOT BE COMPATIBLE with some aftermarket aluminum rear transfer case halves due to the inconsistent manufacturing tolerances seen in them, verify correct fitment prior to installation.Duramax Diesel Transfer Case Upgrade KitTo repair or prevent pump rub failu..

DMAX XD Aluminum Rear Transfer Case HousingFits 2001-2007 Chevy / GMC 2500HD / 3500HDPart# XD-TCASEHOUSINGMade from aluminum not magnesium the Dmax XD rear housing is much more rigid and stronger than the OEM  unit. There is no need for a pump rub kit with this improved housing. This is a ..

The transfer case on your Duramax truck transfers power from the transmission to the front and rear axles by the use of driveshafts. When a transfer case fails, or starts failing, you will lose performance or functionality of your four wheel drive. Replacing your 261XHD transfer case is a job yo..

Replace a 263XHD electronic shift four-wheel drive transfer case found in 2001 to 2007 GM Duramax 6.6L V8 diesel trucks with this brand new one from Merchant Automotive - No core charge! This transfer case is backed by a Merchant Automotive 2-year Unlimited..

The Merchant Automotive Deluxe Bearing and Seal kit for the NP263XHD includes all the bearings and seals throughout the transfer case as well as low range shift fork pads and wear pads for the planetary gearset. If you are wanting to completely refresh your transfer case after any kind of no fluid s..

The Merchant Automotive 263XHD Snap Ring Kit includes all ten snap rings required when replacing the snap rings inside the 263XHD transfer case during a complete rebuild. To make identifying and installing the snap rings easier they are each individually packaged and labeled. One kit includes all th..

Duramax Diesel Transfer Case Upgrade Kit To repair or prevent pump rub failure on your Duramax diesel engine transfer case, use this Merchant Automotive Duramax transfer case upgrade kit with performance transfer case fluid. This kit will give you everything you need to help prevent fu..

The benefits of upgrading an automatic transmission with a deep tranny pan has been widely popular for years, but why not manual transmissions? The benefits are easily the same, if not more, and fortunately, Fast Coolers has you covered with a line of coolers that merely replace the stock PTO covers..

Cracked transmission tail shaft housings (between the transfer case and the transmission) are a common problem for Allison equipped GM 4x4 pick-ups. Even the slightest amount of driveline vibration can cause the adapter to fail causing transmission fluid to leak or worse; internal transmission and t..

Here is the best upgrade you can make to your GM transfer case(model 136, 146, 246, 261, 261HD, 263HD, 263XHD, 261XHD).  Prevent the ever increasing problem of pump rub.  What is "pump rub"     The GM transfer cases use a gear pump inside the case that is driven off the mainshaft.  The pump forces..

Fits '01-'07 Allison 4x4 Transmissions.  This support can keep your Allison four wheel drive housing from cracking in the event of a driveline vibration (bad u joint, dented or bent driveshaft). By Merchant Automotive part number: 10186..

Replace your stock drain plug with this Magnetic Drain Plug Magnetic to 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...

For GM 246, 261, 261XHD, 263, and 263XHD Model TransfercasesSteel Case Saver plate. Eliminates Wear by spreading out surface area and partially restricing the movement of the oil pump. Built from High Quality materials to be long lasting.Install instructions, click here. Adapt-A-Case part number: B..

Heavy duty gasket, will not rip or tear like less expensive gaskets.   Merchant Automotive part #331304A..

Repair your transfer case with out any hassle.  Dont get into the job and realize your missing something.  Includes everything you need to do a proper repair on your transfer case effected by "pump rub"   Included in this package :  Merchant Automotive Transfer Case Pump Upgrade KitNe..

New rear housing.  Does not include drain and fill plugs or rear output seal.  You MUST swap over snap ring for rear bearing and drain and fill plugs.  Comes with driven sprocket support bearing and slip yoke bushing installed...

Fits '07.5-10 Allison 4x4 Transmissions.  This support can keep your Allison four wheel drive housing from cracking in the event of a driveline vibration (bad u joint, dented or bent driveshaft)...

Fits '11-19 Allison 4x4 Transmissions.  This support can keep your Allison four wheel drive housing from cracking in the event of a driveline vibration (bad u joint, dented or bent driveshaft)...

The PPE 129020710 Transfer Case Brace for your 2007.5-2010 GM 6.6L Duramax LMM is designed to help eliminate cracked transmission tail shaft housings (located between the transfer case and the transmission). This is a common problem for GM Allison-equipped 4x4 pick-ups in offroad and drag racing sit..

Replace a 261HD manual shift four-wheel drive transfer case found in 1999 to 2007 GM gas trucks with this brand new one from Merchant Automotive - No core charge!NOTE: Does not include encoder motor.Why Choose Our Transfer Case? Includes Our Transfer Case Pump Upgrade:The GM transfer cases use ..

This shift motor is for 2003-2007 GMC & Chevy with the NP263 transfer case. 1 Year Warranty All transfer case shift motors tested before shipping. Tested for:Correct rotationAmp drawTorque (clockwise & counter clockwise)Position switch function It is NOT recommended to bench test the unit upon arriv..

01-07 GM Duramax Transfercase hole repair plateDRP part number:  77430..

This shift motor is for 1998-2002 GMC & Chevy with the NP246 transfer case. 1 Year Warranty All transfer case shift motors tested before shipping. Tested for:Correct rotationAmp drawTorque (clockwise & counter clockwise)Position switch function It is NOT recommended to bench test the unit upon arriv..

This shift motor is for2002-2007 GMC & Chevy with the NP246 transfer case. 1 Year Warranty All transfer case shift motors tested before shipping.  Tested for:Correct rotation Amp draw Torque (clockwise & counter clockwise) Position switch function It is NOT recommended to bench test th..

This shift motor is for 2000-2003 GMC & Chevy with the NP263 transfer case. 1 Year Warranty All transfer case shift motors tested before shipping. Tested for:Correct rotationAmp drawTorque (clockwise & counter clockwise)Position switch function It is NOT recommended to bench test the unit upon arriv..