The components should be fairly similar, but I am not sure how "bolt-up" they are. I know some FJ suspension components need a little tweaking to fit on 4Runners and the frame, while highly similar is actually a different generation completely (the 4th gens are underpinned by the 120 platform while teh 5th gens, newest Tacoma and FJs are underpinned by the very similar 150)