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 installs in no time and provides factory-like operation, functionality and styling. The TapShifter can be used in the gas or diesel 2001-2005 trucks with an Allison Transmission. Installation: The TapShifter installs using OEM high quality connectors for a completely plug and play installation in less than 30 minutes. Operation: TapShifter Operation is very straight forward. To downshift depress the "-" button on the shifter. To upshift 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 Command Downshifts Decrease Gear Hunting NOTE: 01-02 models will require TCM Re-Flash to enable overdrive lock-out and proper function.
Installation InstructionsWarrantyThis 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 |
| 2004-2005 |
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 |
