Looking for in-stock aftermarket parts to modify or upgrade your 2003 GMC Sierra 2500 HD with shifters? At Tunersports.com we carry a huge selection of the top name brand performance shifter parts and accessories for your Sierra 2500 HD.
Whether you have a 2003 GMC Sierra 2500 HD in Base to WT trim we have you covered. We have 3 shifters available to mod your Sierra 2500 HD. All parts have free shipping to the Continental US 48 States.
 IN STOCK - DROPSHIPS 1604720Performance shift kit for the Allison 1000 valve body to improve pressures and shifting.... BD Diesel Shift Kit - Chev Allison 1000 2001-2005 5spd 2001-2008 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2003-2008 GMC Sierra 2500 HD WT $424.95 |
 IN STOCK - LOW 1031361Add fingertip control for easy Tap Shifting when passing, pulling, hill climbing or whenever you need to switch gears quickly; Works great with engine retarders like BD's Exhaust Brake; Includes new gear shift lever that is ergonomically bent to protect your knee; Wire harness with factory plug-in c... BD Diesel TapShifter - Chevy 2003-2005 Duramax Allison 1000 - Button Gear Selection 2003-2005 GMC Sierra 2500 HD Base / SLE / SLT / WT $458.95 |
 IN STOCK FPE-TAPSHIFTER35The 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 installs in no time and provides factory-like operatio... Fleece Performance 03-05 GM Duramax 6.6L LB7 / LLY GM/Allison TapShifter 2003-2005 GMC Sierra 2500 HD Base / SLE / SLT / WT $411.51 |