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biggest tire to fit on spare mount

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Old 03-18-2012, 05:05 PM
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Default biggest tire to fit on spare mount

i know the tire issue is a common one but i was unable to find the largest tire/rim combo t fit on the stock mount
Old 03-18-2012, 05:36 PM
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I had 35x12.55 R17 KM2s on soft cragars for two years w/o issues.
Old 03-19-2012, 01:35 AM
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I have had 37's on the stock mount with out any issues. I am now saving for the new jcr rear bumper w/carrier.
Old 03-19-2012, 12:55 PM
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I had a 35 on mine and it cracked as well.
Old 03-19-2012, 01:00 PM
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I've had 35s on a 17x9 for 3yrs no probs
Old 03-19-2012, 01:04 PM
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If you drive mostly street and soft trails you'll be ok for a while. If you do more bumpy stuff, you're on borrowed time. My welds were starting to crack with my 35"s after 3 months. I caught it before any damage occured.
Old 03-19-2012, 01:35 PM
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It will break, that is all I have to say
Old 03-19-2012, 01:57 PM
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The key to running larger spares on the stock carrier is the installation of properly fitting bump stops. The Daystar bump stops work well. I've been running 315/70R17's for 18 months without a problem. The key, like I said is the bump stops. They will keep the tire from vibrating and flexing the tailgate. Without them the tire will bounce and the resulting shock-loading will induce failure quickly.

For some real-life experience, a buddy of mine ran a 37" spare for two years with no problems. He is now running a 40" Mud Grapler on his stock carrier.
Old 03-19-2012, 07:15 PM
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35" duratracs on 17x9 pro comps for 2 years with no problems so far.. Lol



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