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What is the largest tire that I put in the spare tire location. The reason I'm asking is because I'm planning to buy the new BF Goodrich KM2 245/75/R17 mud tires 31". I already bought the 2" lift by RevTek and I need to decide which tire size to buy.
 

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265 X .7 = 185.5 mm high (7.3 in)+17+7.3 in = 31.6 in

245 X .75= 183.75 mm high (7.25 in)x2 +17 = 31.5 in

245 X .65 = 159.25 mm high (6.3in)x2 +17 = 29.6 in

so, how big IS the hole with the hitch?
 

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lumberjim said:
265 X .7 = 185.5 mm high (7.3 in)+17+7.3 in = 31.6 in

245 X .75= 183.75 mm high (7.25 in)x2 +17 = 31.5 in

245 X .65 = 159.25 mm high (6.3in)x2 +17 = 29.6 in

so, how big IS the hole with the hitch?
Not sure, but I have a 245/70R17 Wrangler SilentArmor tucked up in there with the factory hitch. It isn't even visible unless you get down below the hitch level.

I don't think the 0.1" would make that much difference to where you couldn't fit the 265/70/R17 up there.
 

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So, not to bring up an old subject - but, I've read the bits here and see that "265/70/r17 will not fit with a tow hitch" but that "245/65/r17 fits pretty well" - so, what about a 255/70r17? Anyone worked that one yet? I'm going to guess that it does, but before I buy a tire to stick in there, I want to be sure. =)
 

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PolarBZ said:
So, not to bring up an old subject - but, I've read the bits here and see that "265/70/r17 will not fit with a tow hitch" but that "245/65/r17 fits pretty well" - so, what about a 255/70r17? Anyone worked that one yet? I'm going to guess that it does, but before I buy a tire to stick in there, I want to be sure. =)
Take one of your 255/70/17s off the hubs and then put it in the spare tire rack to see if it fits.
 

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Ummmm the KM2's dont come in a 245/75R17. They do make a 245/70R17 though! The All Terains come in a 245/75R17
 
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