2003 SPORT TRAC TIRE SIZE

[GERM37]

NOT long ago I bought a 2003 sport trac and I just noticed the tires that are on it are 225x70x16 and the manual and door sticker both list tire size as 255x70x16 so should I change them? it seems not to be as stable in curves as it should be,also it seems to ride a little rough.
THANKS
SHERMAN

 

[Four0Sport]

My fuel door sticker states 235/70r16, it had 255/70r16 when I bought it. I believe someone put 225/70r16s on yours because of a price point or availability issue. The smaller sidewall profile of the 225/70r16s could be the cause of your issues.
FWIW I am running 255/70r17s (32x10) on my currently.

 

[stonecoldsteele2018]

255/70/16 is what they came out with but you can use 235/70/16. I think I would change them out with either one of these. I bought 235/70/16 because of price and they seem to do just fine...When it is time for new tires (if I still have it by then) then I will put what it calls for on the door.

 

[dubbaYous]

I had just bought my 03 ST and the person who had it, had put 225's on it. Tire rack shows the 03 ST had either 255's or 235's on it. of course mine had 255's originally. The Ford dealership here where I live said they would have to look to see if computer could be programmed to sync speedometer with tires. Evidently they cannot be programmed to just any size of tires, just those two sizes evidently, didnt want to waste $90 just to find out they would have to change out tires.