cool let him know i for one and in the market for a well priced well built rear bumper with tire carrier, it shouldn't be hard to fab up a jig for these once he's completed the prototype it'll be cool to see what you guys come up with, that said i put my arb on @ 200K and it rolls like stock even without upgraded springs to support it by no means is modding the 4runner a 117K a bad idea. infact the only thing i can see in the future i may need to replace is the starter but it's still far from going out, every part of my truck is from the factory with 217K on it and still looks and feels new, the only things i have changed was the water pump and timing belt and brakes. but cv's, bushings,driveshafts, trans, every part of my motor and every single other item of my truck has 217K on it and is in better condition then my parents cars with 35K on them.