Re: my speedometer is off what to do?
My speedometer is off too so I used my TomTom GPS to find out the speed I was really going. It shows mine being off about 10 MPH with a turbo 350 and 4.10 gears. The speedometer in my 2000 GMC is off a couple miles per hour too. I am going to use this chart when I get the ambition to change mine.
http://novaresource.org/speedo.htm
Last edited by mikey531; 10-03-2009 at 06:46 AM.
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