Hello all I just picked up my 2010 F150 Lariat "sexy truck"
Im not a fan of the stock tires they seem small, what size can I go up to with the 2.5 AS kit and will I have to recalibrate the speedo?

 

i dont think u will need to recalibrate the speedo. you should do a search for your topic. there are tons of topics on tires with the leveling kit.

 

4x4 or 4x2?

 

its a Lariat 4x4 with 20's

 

 

I would go with the 285/65/20 BFG A/T. There is another member on here that has the 2.5as and those tires and doesn't rub on anything. He also has a 1.5" add-a-leaf because the 2.5 as will make the front sit higher. I can't remember his name but maybe he will chime in. I will be installing my 2.5as and 1.5 AAL tomorrow evening and then too will be putting on these tires in the near future.

 

thats cool post the pic's, you doing it your self ?
im going to go with that same combo, I just do not want it to look like a big truck with small tires
will this change my spedo. ?

thanks

 

you could also go with a shorter shackle, or a bigger block, that way ride isnt affected by the aal, not this it will be that much stiffer, i belive with a 2.5 the biggest tire you could run is a 35x12.5, depending upon the backspacing of the rim.

if the tires are larger your speedo will indeed rear lower, you could get it recalibrated by ford..buy a SCT xcal to change the size, while your at it get it on the dyno and re-calibrate the truck for a few more happy ponies