Fleece Performance · New

Fleece Performance 03-05 GM Duramax 6.6L LB7 / LLY GM/Allison TapShifter

Name: Fleece Performance 03-05 GM Duramax 6.6L LB7 / LLY GM/Allison TapShifter
Brand: Fleece Performance
SKU: fpeFPE-TAPSHIFTER35
Price: 399.00 USD

MPN FPE-TAPSHIFTER35 · Store SKU fpeFPE-TAPSHIFTER35

$399.00

IN STOCK3 ready to ship

Supplier stock checked 11/8/2026, 2:01:47 AM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

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. 2003-2005 GM/Allison TapShifter

Manufacturer fitment & guides

Check FPE-TAPSHIFTER35 against the manufacturer’s application information below.

Part-specific notes

California Proposition 65: Y

Manufacturer documents

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