No links for the rear for me, keepin the 5" marlins for the rear and gonna put my old f150 tank in the rear. I hope to start the links as soon as i get the 3rz in the runner. Not looking forward to grinding all the misc stuff off the 4 runner considering i just got it all done on my truck. 
But thats the perfect set up for a 4link. A tank in the back is the way to go. You'er half way there.
