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USD 324.99 324.99 324.99
Part #:

Fleece Allison Tapshifter

2001-2005 GM 6.6L Duramax LB7/LLY
Part #:
★★★★★ ★★★★★ 3 Reviews
FROM 324.99
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The Fleece TapShifter allows you to shift your 2001-2005 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 installs using OEM high quality connectors for a completely plug and play installation in less than 30 minutes.

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!

  • Limits Up-Shifts 
  • Overdrive Disable*
  • Command Downshifts 
  • Decrease Gear Hunting
  • Easy Plug & Play Installation 
  • 1 Year Limited Warranty

01-02 models will require TCM Re-Flash to enable overdrive Lock-out and proper function. 

Product Options

FPE-TAPSHIFTER12 01-02 - Tapshifter*
FPE-TAPSHIFTER35 03-05 - Tapshifter


  • Manufacturer Name Fleece Performance
  • Shipping Weight 5.00 lb.
  • Shipping Length 3 in.
  • Shipping Width 6 in.
  • Shipping Height 12 in.
  • Fuel Type Diesel
  • Warranty Yes
  • Warranty Info 1 Year Limited
  • Prop 65 WARNING: Cancer & Reproductive Harm -


★★★★★ ★★★★★
5.0/5 Stars out of 3 Reviews
Easy install!
(NE Kansas) | April 26th, 2020
Install was much easier than what I expected!!! The size of the shifter will take some getting used to but definitely not a deal breaker. I used the downshifting capabilities while pulling my horse trailer the day after I installed it. Don’t know how I ever pulled a load without it!!!
Great Look, Feel & Function
(Rutledge, GA) | October 10th, 2019
Had my shop install this part for me last week and I absolutely love it. Definitely looks & feels better than the OE shifter. Quality is top notch. Functions exactly as advertised and gives you much better control of the truck.
(Littleton, CO) | April 5th, 2017
The shifter is very useful for big grades down hills and really just gives a better feeling than the old round shifter. My truck, when selected in 1st gear will shift at 3600 rpm. Great quality and very easy installation. I would recommend doing the shifter cable while you have it all apart.

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Questions and Answers

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Most Popular Questions

Is fleece tap shifter legal in california?
View Staff Answer 
Yes, the tap shifter is legal in California.
Will this work in 2001 Chevy 2500hd with 8.1 and Allison trans
View Staff Answer 

Yes, the FLEECE ALLISON TAPSHIFTER can be installed in both gas and diesel applications with the Allison transmission.

Hello, i have a 2003 Chevrolet 2500HD it has the Vortec8100 with the Allison transmission will this work.?
View Staff Answer 
Yes, the TapShifter can be used in the gas or diesel 2001-2005 pickups with the Allison Transmission.
I have 02 Allison and I upgraded my trans to suncoast 6 speed from 5 speed. Do I need a different year tap shifter to use my 6 speed or will the 02 work for me?
View Staff Answer 
Yes. The Fleece Allison Tapshifter will work in your truck with the 5 to 6 speed conversion but when the Tapshifer is engaged it will skip 5th gear in both directions. The transmission will retain all 6 gears in normal drive mode.
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