SashimiTurtle
New Member
Looking at regearing my 1999 Eddie Bauer 5.4 4x4. I have 35x12.50LT17 and 3.73 factory gears. If I switch to 4.10 my speedometer and transmission shift points will be back to factory. If I decide to go to with a shorter gear like 4.56, is there a way to program the speedometer so it's accurate and my trans shift at the right point? I do not want the speedometer to be off any, no trying to remember what speed I'm really going.
