My tie down setup hooks into the factory tie downs just as the bolt it on kit does. I will get better pics of the system, going to test it out for sure tomorrow.Congrats on getting it done yourself. The only advice I would offer is that they are absolutely correct that the only area able to support any substantial amount of weight is in the frame. If done incorrectly, I have seen where the tie downs literally get ripped out of the floor. Can you show us how you mounted them?