Fleece Performance GM-Allison Tapshifter, 2001-2002 LB7

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Fits: 2001 thru 2002 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7 Duramax Diesel The Fleece TapShifter allows you to shift your 2001-2002 Allison Transmission with the touch of a b utton 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 operation, functionality and styling. TapShifter Operation is very straight forward. To downshift you'll simply depress the "-" button on the shifter. To upshift you'll press the "+" button. The TapShifter will allow you to select a range with the shift lever and then tap up and down without worry of tapping to a higher range than selected. This feature is great for sled pullers who do not want to shift to 4th gear on the track. Features: Easy Plug & Play Installation Limits Up-Shifts Overdrive Disable (will require TCM Re-Flash to enable overdrive lock-out and proper function) Command Downshifts Decrease Gear Hunting Includes: GM/Allison TapShifter Notes: This is meant to be used with Duramax trucks outfitted with an Allison Transmission. Model years 2001-2002 require a TCM Re-Flash to enable the overdrive lock-out and ensure proper function. Refer to GM Technical Service Bulletin 02-07-30-051. Contact your local Chevrolet dealer for reflash and update if required. Show more