pcd is 139 (the jap 6 stud) the width of the wheel varies depending on model, but either 7J or 7.5J and the offset also varies, but the early 'a' on leafs has a deeper dish than the later 'a' on coils.
You can retro fit the early wheels on later ones, but later wheels (or trooper since they have the same offset) on early ones will cause rubbing.
Wheels from troopers mitsis toyota's will all fit on the frontera.