so what is the offset/backspace on stock '07 20's??? hell, i don't even know how wide they are!!! any insights? sorry for hi-jacking the thread, if it's any concellation, if i find out 275/60/R20's will fit i will be buying the cooper zeon's shortly and will post some pics, they look like a great tire from the reviews on discounttiredirect.com...

 

They are very good tires...the best I have put on a truck. Good on the highway, very low noise, very good in the wet and very good in the snow. Most previous tires sacrificed one strong point for another. The Cooper Zeon LTZ,s are very well rounded and predictable. Cant speak for the long term wear but after about 10K miles of somewhat aggressive driving in all sorts of conditions the tread still looks new.

 

You should not have any problem fitting a 275/60/20 on a stock rim with no level. Do a search there are several with this set up. With the stock wheel you tend to run into width problems sooner than height problems and that tire is only about an inch taller than your stockers.

 

thanks for the help, i will be looking for that size if i go to the swap meet this weekend, otherwise i will be ordering them monday from discounttiredirect.com!

 

I have that exact wheel-tire combo on my 2008! I have had a little trouble with getting them balanced. I may need to take it to a different shop. Anyone else have this trouble?

 

You need to get them road force balanced by a shop that knows what they are doing and how to index the tire on the rim. If you are not familiar with how it works this thread should help https://www.f150online.com/forums/wh...explained.html

I had to go to a couple of shops with mine before I found one that knew what they were doing.

 

thanks for the info Scott

 

I got my Cooper from Discount a few weeks ago. So far love them. Fairly aggresive tread not a lot of road noise.

 

Great choice on tires! I love mine as well. Low noise, killer looks and great handling. I had issues with the balancing on mine as well though.

 

I guys, may be you can help me.

I´m buying a 2013 F-150 Platinum with stock rims 20x8.5" and Pirellis Scorpion 275/55R20.

Do you know if I can mount a 305/55R20 or 305/50R20 in the same stock rims 20x8.5 with out leveling?. Will they fit well and secure in that rim´s wide and in the truck with no trouble of rubbing the fenders or suspention arms or any other element?.

Thank you.

 

They will fit the rim but with a tire that wide there will be some rubbing on the sway bar at full steering lock. Without a level you may have some rubbing on the front valance.