TapShifter Silverado/Sierra 2001-2002 Duramax Allison 1000 Button Gear Selection BD Diesel FUEL ADDITIVES giving you the confidence to

giving you the confidence to push the limits of your journey

mounts using existing A-Pillar grab handle location

59% cfm Flow Gain

Part Number: 51-74004

Fitment with throttle body spacer:

TapShifter Silverado/Sierra 2001-2002 Duramax Allison 1000 Button Gear Selection BD Diesel FUEL ADDITIVES giving you the confidence toAdd fingertip control to your 2001 2005 Duramax Allison 1000 Tranmission for easy Tap Shifting when passing, pulling, hill climbing or whenever you need to switch gears quickly just like the newer trucks. Tap Shifter Kits includes new gear shift lever that pre bent for a better fit, a control module and a harness with factory plug in connections makes for a clean and easy install. The 2001 2002 kit also includes an amber LED light for OD disable