My 2011 Melbourne did not come with a spare tire although the space where it used to be is still there. So after a year of wondering what I was going to do if I got a flat, I installed a spare tire hoist with the help of a friend.
You need to add cross-member between the main frame rails to support the tire hoist. You also need to add members for the tire to react against as it is snugged up in place. I used some spare 2.5" x 2.5 structural tubing left over from another project for the hoist and bought 2 @ 1" x 1" angle iron at Sear's for the tire support.
I didn't want the spare tire to become the new low point in the back (got enough of those already), so we worked the design to get the hoist as high as possible.
This is the hole where the spare should be. That angle iron seen on the right needs to be removed.
We side mounted the TECA hoist to the 2.5" x 2.5" tubing. By putting that silver spacer in there, we were able to mount the hoist flush with the top of the tubing.
Here's the TECA #500-100 tire hoist mounted. You can see the angle iron tire supports fore and aft of the hoist.
And here we are with the spare tire mounted. You can see the 3" flat bar side supports for the hoist tubing. You can see the drive tube coming out to the left. A 3/4" socket and ratchet allows you to raise and lower the tire.
Bob in Houston (helper)
Jim (welder and fitter)