I have budbuilt front and belly skids. They are tough as hell and mostly fit, but the bends aren't great and so the skids don't go together like they should. The belly skid is supposed to hook over the top of the back of the front skid so they can be removed independently of each other, but the bends are wrong on mine in that area, so the belly skid has to be bolted to the bottom of the front skid. This means I've got to take both of those skids off to change my oil.

Also, I have like 5/8" worth of washers as spacers between the belly skid and frame, because otherwise the skid hits the transfer case before the frame. I think these were designed around a Tacoma and are close enough that they sell them as universal 4Runner skids.

Bottom line, they work, but they don't go together as easily as they should and are a pain in the ass to get to fit right. That said, they are one of the less expensive options and had fast shipping, so there's that.