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Old 07-06-2012, 01:44 PM   #1
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Spare size issue

So I have bfg km2's on my jeep tj. They are size 285x75x16. I have a spare which is a km1 size 33x10.5x15. Would their be an issue if I need to use it when I get a flat since the size is slightly of or the rim size not the same?

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Old 07-06-2012, 01:52 PM   #2
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To get you home in a pinch, I wouldn' see a problem. It seems to me it would be like running a space saver tire on your passenger car. With that eing said, I wouldn't run it that way for very long.

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Old 07-06-2012, 03:47 PM   #3
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Also, avoid using 4 wheel drive with an odd-ball size tire.
Avoid it like the plague.
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Old 07-06-2012, 05:51 PM   #4
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Alright so just to get home it would be fine if I am like 20 miles away
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Old 07-06-2012, 05:56 PM   #5
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I would just find a used tire that is the same size as your runners. evn if it's almost bald it's better for your rig. when I went to 35's I got a spare for 30 bucks.
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Old 07-06-2012, 06:01 PM   #6
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Section Width:10.43 in265 mmSection Width:10.51 in267 mmRim Diameter:16 in406.4 mmRim Diameter:15 in381 mmRim Width Range:7 - 8 inRim Width Range:7 - 9 inOverall Diameter:31.64 in803.65 mmOverall Diameter:33.08 in840.23 mmSidewall Height:7.82 in198.62 mmSidewall Height:9.04 in229.61 mmRadius:15.82 in401.82 mmRadius:16.54 in420.11 mmCircumference:99.39 in2524.5 mmCircumference:103.9 in2639.0 mmRevs per Mile:657.3Revs per Mile:628.7Actual Speed:60 mph100 km/hSpeedometer1:57.3 mph95.6 km/hSpeedometer Difference: -Speedometer Difference: 4.549% too slowDiameter Difference: -Diameter Difference: 4.36%
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Old 07-06-2012, 06:02 PM   #7
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Well, that didn't post well, but your 265 tire is basically a 32" tire.
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Old 07-06-2012, 07:15 PM   #8
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Quote:
Originally Posted by Plowboy1970
Well, that didn't post well, but your 265 tire is basically a 32" tire.
It's a 285 not 265
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Old 07-06-2012, 08:39 PM   #9
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I have the same issue. The original owner only sprang for four 31", on stock rims, and my spare is a 30.5.
If I used it on the back, it would do bad things to the Dana 44 w/ LSD.

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