Thought I would share some more details about how I carry my full size spare in the back of the GX.
With a 285/70r17 tire, you pretty much lose the ability to carry your spare underneath the rear in the factory location. Some people have made it work, but it looks weird with a bumper chop and I’d hate to smack a Method while driving off a ledge or something.
Using a basic ratchet strap, I use the factory tie down points to secure my spare in the back. You could put it on either side, but I chose passenger side as that aligns best with the folding seat split for the best utilization of space. I still sleep in the back of the GX with the spare and it really doesn’t get in my way.
On bumpy trails, the spare can wobble around a lot if you don’t secure it properly. As you can see in the photos, I have a ton of extra slack in the ratchet strap that I thread through the wheel’s spokes and up and around the 3rd row grab handle. With this tightened down, the wobble is reduced greatly. To make it even more snug, I like to wedge a bag between the tire and interior panel. Although it’s not the easiest to access, you can actually fit a lot of gear behind the spare. I keep my recovery gear and airing down equipment back there. I could even fit my tool bag back there but I need tools so frequently I just tuck the bag between the 2nd row seat and tire. Considering how much floor space those 3 bags take up, the spare actually doesn’t take away any more floor space if I throw the bags behind it.
Fitment isn’t too tight, and you could probably squeeze a 35 in the back if you were careful. I keep my back seats reclined to a comfortable position and there’s still about an inch of space from the tire. If you kept the seats upright you could get a lot more space.
Overall, this is a pretty good setup considering it’ll only cost you a ratchet strap. Once I get my lift situated, I’ll be getting a custom tire carrier made so I can build a drawer system sleeping platform. If I didn’t need the whole rear area for a drawer system, I’d be perfectly fine keeping the spare back here. My only concern would be having to swap out with a tire covered in mud and getting the back dirty haha - 7 minutes ago