I was going to replace all the heater hoses but the dealership was to expensive-big suprise. I just took some hoses off, wire brushed the male ends, got new hose clamps and tightened some things down. It hasn't leaked yet. I also put some spray-on gasket sealer on the valve cover gaskets along with red silicone on the corners. I'll tell ya'll if it works or not.

88 V6 4Runner, 2" 4Crawler body lift, 2" suspension, 32x11.50 Pro Comps