15" rims and tires are cheaper than 16". They are also more plentiful.

Lug pattern is 6 on 5.5 (standard Chevy/Toyota).

Quote
No, you will actually have pretty hard time finding anything (at least cheap) what would fit. Except OEM. You can always buy a used set on ebay or something. Why would you want 15" anyway

2003 Jeep Grand Cherokee
34K
6" Long arm lift
Rock Sliders
ARB Bumper(s)
Mile Marker winch
285/75/16 Dueler AT's
ARB air locker (front)
Custom Roof Rack