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I have a set of 4.10 Ford Racing Gears. I will be haveing them installed soon in my 1996 Mustang GT with a Auto trainee and im not shur on how to recalibrate my speedometer and transmission shift points. Can i use my Xcalibrator 3 Tuner our do i have to buy a speedCal device?
I'm 100% positive you need to get a new spedo gear. I had a 96 GT Auto as well, and I needed to install a spedo gear in the transmission to recalibrate the sepedometer. I believe it is the white gear for 4.10 gears, but double check to be sure.