largest tire for rear spare carrier?

[TTLex]

whats the largest tire you can fit on the rear spare mount? How much weight can that bad boy hold?

I have 20x12 with 40x15.5x20 toyos. Im trying to get a full size spare somewhere on the truck, dont think the gobi will hold a 40"

[racer24]

I have a 13.50/40/17 on mine with no problems at all. I have the taillight guards on mine and it touches the guard when I have it fully open. I can still open the rear hatch but it's close. Glad I didn't get 42's I doubt it would have opened. Those things are stout but keep it greased.

[TTLex]

looking at it, do you think a 15.5 would have fit? I know it will vary with offset, etc..

no issues with the extra weight of the 40's on there?

[racer24]

My wheels are 17x10 Mazzi Hulks with negative 12 offset. Tires are Wrangler MT/R's 13.50 and they fit fine on my carrier. Looks like it was made for it. I can't say for sure with 15.50's but with offset on the wheel you should be fine but like I said can't say for sure.

[TTLex]

I did some measuirng today, I think I am good to go. Now I jsut need to find an inexpensive 40" toyo for a spare!