Yes the threaded brackets are there. I ordered the parts and added the false floor myself to my LT since mine came without it. The real PITA was having to cut out the pre-marked plastic circles to expose the mounts.This is my real fear. Do all the cars have the threads in the chassis to accept the brackets? Likely they are, but I still don't know. The sales guy sent me this to try to assure me, but the answer is still not clear to me.