setting the speedo

[ex91]

i'v changed the tire size but the speedo has to be changed .
the car is a 98 ranger and there is no gears to chandg i'v been told the i can agust it on the speedo how do i set it?????? the truck had 225/70/14 and now it has 235/75/15 ???

 

[riffman]

im not sure how to figure out the ratio, and where you gear would be since you are 2wd, but in the 4x4's there is a speedo gear in our transfer case...and that can just be changed

so...when your spedo says 65, you are actually going 71 mph....so if you can't figure out how to get the spedo gear changed, then just keep it around 5 under, and you should be safe

good luck!