Just did mine. 2011 taco coilovers trd sport with bilsteins with stock rear, it now sits level. http://www.toyota-4runner.org/4th-gen-t4rs/162133-tacoma-coilover-yes.html.
It doesn't matter I got mine for only a hundred bucks. (Btw my wife's ride)
Performance wise, it's awesome. Rides like factory but doesn't hit bumpstops. Son says it seems like it's gliding which we all like.
Unfortunately not but since I had the tokiko shocks before my ride was waaaay nose down. Now it sits level. I think this is better than an fj because it's much cheaper and it's readily available . Just get the trd so it has bilstein
I'm now worried after reading this thread. Maybe it's just a matter of time or Toyota did something on later 4th gen models . 08 4runner haven't been in a garage under socal sun no cracks yet .