Max tire size for 2015 f150 4wd.
New to the forum, i own a 2015 f150 supercrew lariat 4wd. My truck is completely stock except that i removed the rear lift blocks over the axle so that i could fit my new truck in my low opening garage. My truck came with the 20" wheels and 275/55/ r20 tires. I want to know what the max tire size can be put on without trimming or rubbing too bad. I am going to buy after market wheels and i know offset plays a part in how the tires clear so i also need to know what kind of offset i need to have so the tires will clear. Thanks for any suggestions or help anyone can give!