Abbott box, gear correction for 99+

JML81

WIKD281
Established Member
Joined
Aug 21, 2009
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124
Location
CA
Changing the diodes on this plug in box allows complete accuracy on the speedometer for whatever gear changes you make! Very easy to hook up, 4 wires come out the box. Diodes are just pushed in place! Works on any system that has an electronically controlled speedo! Was on my 99 w/ 4.10s and worked beautifully! Thanks!

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