Can't fit much larger than stock. My 245/65-17 is pushing it. Hence why rear bumper/tire carriers are so popular. The good news is that with the tire on the back you free up a lot more interior storage space - you can do a dual-battery there, OBA, etc.

 

I got bigger tires they sit at around 31 and they are kinda goofy in there. It doesnt sit quit right so I made a sub box that is 2/3 the size of the circle and the rest i put my tow strap and tools and such. I have been looking at making a roof rack for my spare for over a year now...it sucks haha

 

I believe 30.5 or so is as big as you can fit in there. i know someone who has a 245/70/17 in there and it just fits.

 

Trxus M/t 31x10.5 15 cover fit over it as well. This was a pic the guy I bought it from sent me before I got my hands on it, now its much cleaner.

 

Haha nice, I'll probably be running 245/75R16 or 265/70R16 so hopefully I can get whichever one I choose in there. Speaking of which, is there any noticeable pros/cons between 245/265 when they are both right around 30.5"? Heard wider isn't that great in the snow but doesn't make much sense to me....eh?

 

Wider tires will tend to follow ruts in the road more and will weigh more/poorer economy. Of course they will have more traction in nearly all situations.

People will always argue about "skinny vs wide" for snow performance. "Skinny cuts through the snow to get to the pavement" is the typical argument. This is only good if you are able to DO that. Only in light snow will that really work. If you do snow wheeling, you WANT wide tires, way aired-down, to provide flotation on the snow. Cutting through to the ground in 2" of snow means you are buried axle deep. You want the largest footprint possible. Think of a snowmobile track....is it wide or skinny? Aired down tires perform in a similar way.

 

Thanks dude, makes perfect sense!

 

im running 245/75/16 MTRs, and the spare fits in the well like OJ's glove. Just a little tight, but it did the job.

 

32" - make it fit ! a spare only needs to be the over diameter correct , nothing else much matters right ? a 235/85/16 is a 32" ( or close enough tire , right ) ...well this is how you make it fit
there is so much room in there , it's not even funny .. even a 33" if not 35" would fit if that entire well gets redone and enlarged. i would never run anything else outside the car or kill trunk space to carry a spare when you have this

https://www.jeepforum.com/gallery/data/4/thumbs/wj_spare_32inch_2.JPG
https://www.jeepforum.com/gallery/data/4/thumbs/wj_spare_32inch_1.JPG

 

See this link https://www.jeepforum.com/forum/f31...um/f310/max-spare-tire-size-jk-rims-fit-spare-well-have-cover-lay-flat-4343989/

Michelin 265/65R17 fits ok in the spare tire wheel well, but still 1/2 inch gap

 

When I was running 245/70-17's the spare just fit into the spare tire well. I did deflate it quite a bit so I could close the cover. Now running 32x10.50 tires and had to build a custom rack in the back. I use the spare well as storage for emergency food, floor jack, tire tools, spare parts and more. I store my chairs, tools, air compressor, first aid and other supplies under the spare rack. I keep my tow straps in the inside the spare on the rack. I can still see out the rear window.

 

Just installed 245/70R17 Falken AT3W, and I confirm the tire width (9.6") exceeds the spare storage depth, when inflated fully. The diameter is right on at 30.5". I'm debating whether I should deflate the spare tire a bit to fit better, but I think that's a bit silly...