For those of you wondering about the psi ratings, if you have the T02 rims as pictured on this page with an 8 bolt pattern:
T02 Rims
they are rated for 3750 pounds and 110 psi. We have 614's mounted on this rim.
Bingo
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Bingo and Cathy - Our adventures begin in the hills of WV. We are
blessed by our 2014 3850FL Big Sky (previous 2011 3750FL and 2007 3400RL) that we pull with a 2007 Chevy Silverado Classic DRW CC dually.