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Old 01-21-2010, 08:42 AM
rwenzing rwenzing is offline
Some assembly required...
Join Date: Jun 2009
Posts: 921

A flash tuner won't work for speedo/odo correction on Rangers before 2001.

95~97 Ranger/Explorers have a gear-driven signal generator on the trans or transfer case for the electric speedometer. Much like a conventional speedo cable, the SG can accept interchangeable gears to correct for tire size and/or axle ratio (within limits of course). Several different gears are available. Check the Tech Library at for more info on calculating the correct gear tooth count.
2003 FX4 Level II, Supercharged 5.0L V8, Headers, Duals
BW4406 manual transfer case, Aussie Locker, Torsen L/S, 4.10's
Bilstein 7100 rezzies, Cadillac/Mustang rear discs, Duff traction bars
Keypad Entry, Lock LEDs, ABS switch, sway bar discos
Heated seats, Explorer EATC, Trip Computer and consoles

2003 XLT 2.3L M5OD-R1 reg cab, 2011 Taurus SEL, 2016 C-MAX Energi Plug-in Hybrid
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