M mrf0rd Founding Member Mar 13, 2001 64 0 0 Kent, WA Jan 29, 2007 #1 Jan 29, 2007 #1 I replaced the 85 mph speedometer with a 140mph version for my 87 LX and now my speedometer reads a little high. We're talking +7 @ 60 mph. Is this a calibration issue with the new unit or something else? Stock tire size and AOD in use. Any suggestions are appreciated.
I replaced the 85 mph speedometer with a 140mph version for my 87 LX and now my speedometer reads a little high. We're talking +7 @ 60 mph. Is this a calibration issue with the new unit or something else? Stock tire size and AOD in use. Any suggestions are appreciated.
795.0pacecar lover of pudgy polygamists Jul 11, 2003 480 0 17 Senoia, GA Jan 29, 2007 #2 Jan 29, 2007 #2 Most likely a calibration issue. If you'd rather not pull out the gauge and have it recalibrate, then try a new speedometer gear with 1 more tooth on it, than your current gear.
Most likely a calibration issue. If you'd rather not pull out the gauge and have it recalibrate, then try a new speedometer gear with 1 more tooth on it, than your current gear.