I got right around 3' of lift. about the brakes, if your runner came with 16' wheels then most certainly it has the 4-pot calipers. A 15' wheel will not fit because it would not clear the brakes. If you go with the same soft 8s, you wont have any issues. You will fine running 265/70s w/o lift. If you do lift it with the OME setup, you can go with 285/75s