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Jeff Chambers · 03-16-2006, 08:42 PM

With a 97, you can just change the driven gear on the speedometer cable at the transmission. It'll cost you less than $10 and take about 10 minutes once you've got the car up in the air. 99 and later require either a Speedcal unit or changing it with a handheld/custom tuning.

03-16-2006, 08:42 PM	#2
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: need help with recalibrating my speedo With a 97, you can just change the driven gear on the speedometer cable at the transmission. It'll cost you less than $10 and take about 10 minutes once you've got the car up in the air. 99 and later require either a Speedcal unit or changing it with a handheld/custom tuning. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"