speedometer off

reignman · 10-30-2002, 01:50 PM

my speedometer is off by about ten miles per hour (speedo says 45mph= really 35mph) i have stock wheels on but i dont knwo about any gears beeing changed. what would cause my speedometer to be off

thanks

LX XLR8R · 10-30-2002, 02:29 PM

things that cause incorrect speedo are

**incorrect speedo gear for the given rear gears
**diffrent OD of tire size than b4

drudis · 10-30-2002, 03:44 PM

Find out how much its off at 60mph. Thats what it is basically calibrated for.
Then pull the speedo cable out of the tranny. (piece of cake with one nut, and a c-clip...).
Then go to the dealership and see what they recommend.

10-30-2002, 01:50 PM	#1
reignman Registered Member Join Date: Oct 2002 Location: cincinnati ohio Posts: 24	speedometer off my speedometer is off by about ten miles per hour (speedo says 45mph= really 35mph) i have stock wheels on but i dont knwo about any gears beeing changed. what would cause my speedometer to be off thanks __________________ 92 Lx Flowmaster pipes, but no other mods 110,000 miles rookie mustang owner

10-30-2002, 02:29 PM	#2
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	things that cause incorrect speedo are incorrect speedo gear for the given rear gears diffrent OD of tire size than b4 __________________ 95 undecided cubes, AFR 185s,undecided cam, undecided intake, and a 150 hit 89 "turbonotch" 2.3T You might want to hold on..i saw this on a cartoon once

10-30-2002, 03:44 PM	#3
drudis Moderator Join Date: Dec 1999 Location: Livonia, MI, USA Posts: 1,194	Find out how much its off at 60mph. Thats what it is basically calibrated for. Then pull the speedo cable out of the tranny. (piece of cake with one nut, and a c-clip...). Then go to the dealership and see what they recommend. __________________ Darius Rudis, Moderator Corner Carvers Delight 1989 Mustang LX - Open Track Car http://www.dariusrudis.com

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