I have A '15 Lariat on its way and want to put after market wheels and tires on it and do not want them to stick out past the wheel well. I don't mind a little bit, but how do I figure out what off set to buy so they aren't too wide?

 

Congrats, I believe the stock offset is a +44. I went with a +20 offset, 20x9 rims. Sits close to flush with fender. 0 offset will make the tires stick out an inch or two also depending on the tire you chose. Here's a side pic.

 

I had a 2011 Ford F-150 and I put 22" KMC Slides on 305/45/22 Nitto Terra Grappler tires and it was perfect. I just don't remember what off set I got for the rims. I want to put the exact same wheel/Tire package on but want to make sure the fit will be the same.

 

I don't have a pic handy but I was in the same situation a month or so back and finally went with 20x9 +14 offset fuel Mavericks and couldn't be happier. I didn't want them sticking out past the fender much, I think they are about 3/4 of an inch out in the front, perfect for me. Check my signature for the full specs. I'll see if I can find the pics.

 

Here's the thread. I could have gone with a skinnier tire and sucked it in a little but I think it turned out good.

https://www.f150forum.com/f118/new-shoes-305883/

 

Looks good. So I should go with the same off set you have and I should be good, correct?

 

I would think so, mine stick out a smidge in the front and are flush in the rears, I've had no rubbing whatsoever in the 1k miles I've put on them so far. The other option for these was a +20 which mbs2424 has in the pics above, the difference is only 1/4 of an inch between the two so.....

 

The 1/2" mismatch between the front n rear is the issue

On a 20x9 wheel

Flush on front ~35 offset
Flush on rear ~20 offset

I wanted flush on front leaving my rear to be slightly tucked under