Speed sensor

[Austin G]

Just wondering if it is possible to replace the speed sensor to compensate for larger tires? And where you would get a different sensor.

[daemon711]

Ok, here is what I understand about our trucks from 99-03. The dealer can adjust your stock computer up to a 34in tire. That's just the computer. The speed sensors are not adjustable. The best suggestion I have for you is to us a Superchips tuner, the flashpaq or cortex. The flashpaq can adjust up to 38in tires and the cortex can adjust up to 40in tires, supposedly the tirepaq will just too, not sre how high though. You can also make adjustments if you have Auto Enginuity. I hope this answers your question. Keep us posted and good luck. There might be other tuners that can adjust andif all else fails, there is also the superlift truspeed sensor, or some product called "wizard something or other", sorry I don't remember the name of it

[Austin G]

Ok, I have 35'' tires now. Is the sensor electronic? I figured it would be a gear that could be changed for a different size.

[Jarrod B]

the obs trucks i know can only take so many recals before you have to buy a new speedo. is it the same with the sd trucks?

[daemon711]

With the 99-03 superdutys, the speed is read by the abs system. You have 3 of those and another sensor on the top of the tranny. One abs sensor is on each of the front hubs and then the last is on the rear differential. It has nothing to do with the gears. Good luck.

[Austin G]

Going to buy the tirepaq. The image has it up to 38'' tires so I know it can go high enough.

[Dave]

Originally Posted by AgentAustin

Going to buy the tirepaq. The image has it up to 38'' tires so I know it can go high enough.

No dont go buy the tirepaq.

Either get the superlift truspeed or the TS respeed.

The tirepaq only works with stock applications. Tunes will mess with it.

Ford can reflash your PCM for up to a 37 inch tire. Most dealers charge one hour labor