Fleece GM/Allison TapShifter for 2003-2005 Chevy/GMC LB7/LLY Duramax
FPEFPE-TAPSHIFTER35Tap shifting isn't just for the newer Duramax trucks.
The Fleece TapShifter lets you shift your GM Allison with the touch of a button, just like 2006 and newer trucks. It's great for towing, drag racing, daily driving and everything in between, and it looks and works like a factory part. It works in gas or diesel 2001-2005 trucks with an Allison.
How it works
- Press "-" to downshift and "+" to upshift
- Select a range with the shift lever, then tap up and down without tapping past the range you picked
- Great for sled pullers who don't want 4th gear on the track
- Limits up-shifts and works as an overdrive disable
- Commands downshifts and helps decrease gear hunting
Install
- Plug and play with OEM high quality connectors
- Installs in less than 30 minutes
Note: 01-02 models will require a TCM re-flash to enable overdrive lock-out and proper function.
Specs
- Transmission: GM/Allison
- Engine: 6.6L LB7 / LLY Duramax
- Part number: FPE-TAPSHIFTER35
PPEI recommends the TapShifter, and it's the kind of upgrade we run on our own trucks. Pair it with PPEI Allison transmission tuning and you get better shift quality from the tune plus full control when you're towing or racing.
Fitment
- Chevrolet Silverado 2500 HD: 2003-2005 Base, LS, LT; 2004-2005 WT
- Chevrolet Silverado 3500: 2003-2005 Base, LS, LT; 2004 WT
- GMC Sierra 2500 HD: 2003-2005 Base, SLE, SLT, WT
- GMC Sierra 3500: 2003-2005 Base, SLE, SLT; 2004-2005 WT
Couldn't load pickup availability

WHO IS THE TUNER/CALIBRATOR
PPEI, also known as Power Performance Enterprises, Inc., is led by the business owner and lead calibrator/tuner Kory Willis. PPEI began calibrating/tuning back in 2008, specializing in Diesel Performance but has since expanded into the Gas and Powersports industries. Kory and the team at PPEI have set many world records along with continuing many industry “firsts”. We take pride in knowing that Kory not only prides his work, but also thoroughly enjoys setting expectations high for our team so our customers can have the best products available in the world.










