Fleece Performance 03-05 GM Duramax 6.6L LB7 / LLY GM/Allison TapShifter

The Fleece Performance TapShifter allows you to shift your 2001-2005 GM Allison Transmission with the touch of a button just like the 2006 and newer trucks. Perfect for towing, drag racing, daily driving and everything in-between, the TapShifter installsInstallation InstructionsThis Part Fits: Year Make Model Submodel 2003-2005 Chevrolet Silverado 2500 HD Base 2003-2005 Chevrolet Silverado 2500 HD LS 2003-2005 Chevrolet Silverado 2500 HD LT 2004 Chevrolet Silverado 2500 HD WT 2003-2005 Chevrolet Silverado 3500 Base 2003-2005 Chevrolet Silverado 3500 LS 2003-2005 Chevrolet Silverado 3500 LT 2004 Chevrolet Silverado 3500 WT 2003-2005 GMC Sierra 2500 HD Base 2003-2005 GMC Sierra 2500 HD SLE 2003-2005 GMC Sierra 2500 HD SLT 2003-2005 GMC Sierra 2500 HD WT 2003-2005 GMC Sierra 3500 Base 2003-2005 GMC Sierra 3500 SLE 2003-2005 GMC Sierra 3500 SLT 2004-2005 GMC Sierra 3500 WT