Take off the
Grille, remove lights and turn signals, unscrew the bumper arm bolts, and finally pull off the bolts securing the bumper to the body. You put things back by hand-tightening all screws and bolts until they stay in place. Check the exploded view where it shows the rear bumper and brackets parts to use when replacing them on the 4Runner vehicle. Instillation is just like taking out, but make sure you tighten everything until it's secure.