Boss252

I searched the forum and can't find the answer I need. I am looking to change my stock 18" wheels for a new set of 20" wheels. I do not have a leveling kit. The tires I have are 275/60R20 what offset and back spacing do I need to get for them to fit on my 2011 F-150 Lariat without any rubbing issues?

H-60 Electrician

I went from 18" to 275/55 20x9's to keep the diameter the same. I don't have a level either and also have Gatorback mudflaps on it. I got +30 offset to keep the wheels inside the wells. No rubbing issues at all. If you get tires that are 65+ diameter, that might rub some.

bign1497

The tires you have are 1" taller than H-60 mentioned. That would only be an increase of 1/2 " all around. It should fit with the more + offsets

Boss252

How much clearance do you have?

Boss252

One of the companies told me to go with +30 offset. Just seemed to me that would be to close the control arms. Maybe not

bign1497

Stock 20 " rims are 8 1/2" with +44 offset. So a 9" rim with +30 offset would have about 1/4" more clearance than stock

Boss252

Thanks. Didn't know what a stock one ran.

celltech

I went with +20 on my Fuel wheels. I read through all 500 pages of the wheels and tire sticky and decided I liked that best. However I bought 305/55/20 tires and if I could do it all over I would have went with a slightly narrower tire.

bign1497

Did they rub?

motodmast

I have +18 on my 20x9 with 305/55r20 (basically 33x12.5) and they don't rub. Tires stick out about an inch, maybe A bit more on each side