2003-2005 GM/Allison TapShifter Fleece Performance

Tap-shift the Allison

Fleece's TapShifter adds push-button gear selection to the Allison automatic in the 2003-2005 GM 2500/3500 pickups, like the factory setup on 2006-and-newer GM trucks. It's handy for towing and everyday driving, plugs straight in, and looks and works like a factory part.

Pick a range with the shift lever, then press - to downshift and + to upshift. It won't tap past the range you selected, so it limits upshifts, lets you lock out overdrive, gives you commanded downshifts and cuts down on gear hunting.

Who it's for

Owners of 2003-2005 Chevrolet Silverado / GMC Sierra 2500/3500 with the Allison automatic who want manual control of the Allison for towing.

Key specs (per Fleece)

What's included

• TapShifter

Fitment notes

• Fits 2003-2005 Chevrolet Silverado / GMC Sierra 2500/3500 with the Allison automatic (per Fleece).
• Not compatible with 6-speed conversions.

Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.