I also managed to finish up my spare tire mount/sub box.

I finished the outside of the MDF that made the box in some stuff I found in my basement, it was once supposed to be used to cover counter tops back in the like 70s, but I found a new use for it. Just cut it to size and glued it on. The metal plate on top is where the spare is going to sit. I used some dupicolor bed armor spray paint to coat the metal to prevent nicks and scrapes when sliding the tire around on it. That stuff is super hard to get a nice coat on but after some time it worked out.
To hold the tire to the plate, I used some 1/2 13 all thread and tacked on some lug nuts to get a socket on it to hold the tire secure
Then to hold the box to the truck, but also allow it to be removable I used some 1/4 inch cable to create this...
So the final step was to throw the tire up there and see how secure it is.
After securing everything down it seems pretty ridged. I did not get a chance to drive it yet with the tire on there so I suppose that will be the true test. The reason I made it removable is because when I go wheeling, I do not want the sub box in the truck, and will just strap the tire to the top of the drawers. The tire does stick up a little higher than I was hoping, but once the idea turned to make the box into a sub box it required a new angle to fit the sub with out it hitting the seats. It's close but it still works great to my ear.
But it's like someone is sitting in the middle seat when looking out the rear view mirror.
Overall I'm happy with the almost finished product. And I'm even more happy because my spring break starts this coming weekend and I'm going back to Rausch Creek Off Road Park for some off road fun.