Will they fit? Yes
With 4" of backspacing, they are going to stick out about 1.25" past the factory fender flares, which is going to give you a bit of a "brodozer" or "skateboard" look. I hate that look, but that is just my opinion.
Offset isn't a term we use in the Jeep world, we use backspacing instead. The idea backspace would be 5.2" or right around there.
With 4" of backspacing, they are going to stick out about 1.25" past the factory fender flares, which is going to give you a bit of a "brodozer" or "skateboard" look. I hate that look, but that is just my opinion.
Offset isn't a term we use in the Jeep world, we use backspacing instead. The idea backspace would be 5.2" or right around there.
Because with 5.25" backspacing (the ideal backspacing) and a 12.5" wide tire, the wheels and tires are almost perfectly flush with the fender flares.
With 4" backspacing, you just subtract that from 5.25", which means they'll stick out roughly 1.25" from the fender flares. Possibly a little more or less, but it's going to be very close to that.
You'll notice a ton of aftermarket wheels specifically for the JK with 5.25" backspacing. There's a reason for that, because it really is the ideal number for the majority of us (unless you have some sort of insane setup such as 40s and 1-ton axles, etc.).
Yep, that should work. They'll stick out a little, but it won't be anything crazy.