Found some rims $50 for 4 wagon wheels are 15 inch rims too small for a Jk I heard they won't fit because the calipers are too big?!

 

Depends on the backspace. You want at least 4" BS, but a 3.75" would be better. And you didn't specify the bolt pattern, so make sure they are 5x5

 

yes... it depends on back spacing, as well as the wheel. i have V5, with a 3.5"bs, but i needed to grind the calipers a hair to fit it... i actually used the .25" spacer... its been working fine for me for over a year now.

 

Haha what's up Bill? Bought time you posted something.

 

I've been running 15's on mine with 3.75 inch back spacing without any real problems. The extra side wall material helps when I'm running the tires at 10 psi. Go to a GOOD tire shop and talk with them they will help you out.

 

How do I measure the backspacing?

 

I run 15s with 4" BS no problem. I've have read that some steelies and because of the way there designed (two-piece design, alloys are typically one piece) that the extra weld areas cause rubbing. An option if you can spare a little $ is wheel spacers

 

I've got 15" Pro Comps (3.75" BS). Fits but barely! works like a champ.

 

I have 15 in soft 8s I had to grind the calipers for them to fit