Speedometer correction question.
 

My truck currently has P235 70R 16's on it, and I am planning on going way up to the 285 75R 17's with new 17 inch wheels. The P235's have my speedometer set at the factory setting. I know you can buy programmers to correct the speedometer for the new tire size, however, I don't really want to buy a programmer to do that. Is there any other way this can be done? Can the Ford Dealership do it? Thanks all.

gw

i'm almost certain a dealership can do it:-X22

I was hoping so..thanks!

It depends on the year. My 97 f150 can't be reprogrammed. I think 98's can't either. 99+ can have the computer reprogrammed to compensate for tire/gear changes. For 97's and 98's use Superlift's Truspeed sensor calibrator. It installs inline and changes the signal. Course I dont even know if you have a 150.

Yes, I sure do... I have a 2003 F-150 XLT 4x4 SuperCab. THanks for the information.