Up under the fender of this Lexus V8 Tacoma you can really see how nicely things push up into there. There is no way the tire will come up that far into the body. I took this while I was adjusting the height of the battery shelf. I'll be reinforcing the side of the inner fender even more with a plate of steel that I cut for this purpose. After this the mounting points will be much stronger and welded into place.
Another look at the side fender mounting area: