if you arent going to be doing any hard core 4wheeling, with deep mud or sharp rocks, you prob. dont need to upgrade from your stock skid plates. I take the 4runner out and basically just beat on it and I didnt upgrade until I ripped my front skidplates (yes, the two that are connected) right off when i was getting recovered. If you want to add the protection like some steel, or if you can afford it aluminum, and are ready to deal with the extra weight on the already slow 4wd 4Runner, then I will send you pictures of my skid plates, they go from my ARB front bumper, to the gas tank, cheap and effective, bullet proof. Still need that gas tank skid built, but hey, whats the worst that can happen.....