I picked up a 21 Lariat 6.5 bed. The truck came with 18 inch wheels, my previous 2 f150’s had stock 20’s what’s the biggest tire I can run with 2.5 level on the front end? Any guidance will be appreciated. On my previous 2 trucks I ran a 285/65R20.

 

Interested as well. I just placed an order for a 21 and am hoping I can fit my current wheels from my XLT sport with 2.25” level. I’m running 305/70r17 +12

i plan to run the roush fox coil overs on the 21

 

I feel it is safe to assume you could run the same diameter/width tire you had before. The stock tire for 2021 is slightly larger, I think a 60 series sidewall on the 20 vs the previous 55 series.

The fact it has 18" or 20" wheel is 100% irrelevant.

 

I am running a 295/70R18 on mine with a 2.5 lift. Width wise It is very close to the control arm but no rubbing or trimming.