I have changed rim/tire size on my truck and would like to get a programmer to recalibrate.Problem is i hear alot of programmers wont work properly on a 98 F-150 4.6. Any ideas on want brand and model to go with. Thanks

 

Only 99 up can be recalibrated with a programmer because of the speed sensor that gives input to the ECM. 97-98s don't give speed input to the ECM.