I have a 2010 unlimited sport with 17" rims, never modified. I wanted to get wider tires for the sand. Since I'm in Argentina, it's not easy to get tires for 17" rims, so I got some OEM 16" wrangler rims.
But when I tried to put them, they whouldn't fit because of the caliper.
How is this possible !!! THE RIMS ARE OEM !!!
Some guys use 15" rims !
PD: my brake discs are 33cm or 13" in diameter.