alwilson

Hi all, I appreciate any help with this.

I have 2007 F150 FX4 with level kit

I just purchased some wheels that are 20"x9 with +18 offset.

I'd like to get Toyo Open Country M/T 35x12.50R20 tires. Are those too big for my setup? Will there be rubbing?

kv67ssrs

I have 35x12.5.20 Cooper STT on Fuel Anzo wheels. ( +20 offset, 5.5 BS) 2.5" level. Had to trim just a bit off of the plastic air dam on the front outside corners. 2014 FX4

ExpresswayFord

Yes.
Answer is in here:
https://www.f150forum.com/f4/tire-wh...04-08-a-24510/

alwilson

yes they will fit or yes there will be rubbing?

I saw that post you linked but still not sure because I don't know the back spacing on my rims. All that is listed on the specs for them is 20x9, 6x135 bolt pattern and +18 offset.

techrep

iTrader: (1)

Toyo M/T 35/12.50... the actual width is what on these tires ?

alwilson

I thought the 12.5 was the width. Does that 12.5 stand for something else?

ExpresswayFord

Yes, you can run 35x12.50's on 20x9+18 (which is approx. 5.75" backspacing)
+18's not a very aggressive offset. You might have to nip the corner of the bumper valence off, but there won't be any major rubbing with that.

ExpresswayFord

Some tires actually measure wider than their specs indicate.

alwilson

Thanks for the info! What did you mean by not very aggressive offset? I am still new to some of these terms and not sure exactly what offset is.

I don't want them to stick out far past the fenders (I have Bushwacker pocket style flares)

ExpresswayFord

An aggressive offset is one that sticks out really far. The more they stick out, the more chances of rubbing you have (besides going with a wide tire like 12.50" on stock offset - then you have the chance of rubbing on the control arm).

A 9" wide rim with +18 offset is modest. It'll stick out a little compared to stock, put it nice and flush with your stock fenders, or sightly tucked in from your pocket flares so as to not splash dirt all over the side of your truck.