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