My Freightliner XC chassis showed 10% fast on the speedometer reading from when new, according to original owner. He said he was told that it was not easily fixable The simple "fix", in my case, was to correct the 6-position "dip" switch settings on the back of the speedometer. I called Freightliner and got the correct settings. Now it registers exactly the same speed as my GPS. Rook
When you get a chance to dance, or sit this one out......I hope you DANCE!
98 National Tradewinds 7370, powered by a 3126B 300HP CAT Turbo, Freightliner XC chassis