Depends on the offset of the Gladiator wheels. As far as I know Gladiator/Wranglers have significantly smaller offsets than the XK/WK.
I've been doing a lot of research on the topic and As far as my calculations go we can get away with wheels that have an offset of about +18mm/+12mm without the wheels sticking out past the wheel flares.
I've been doing a lot of research on the topic and As far as my calculations go we can get away with wheels that have an offset of about +18mm/+12mm without the wheels sticking out past the wheel flares.