[cjk73]

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cjk,

sorry but your analisis wrong. big trucks use multiple tires per axle for federal weight restristions. notice all the truck weigh stations on interstates. they are weighing the amount of weight on each axle.

the tire crap you see on the road side is the majority of the of time from recapped tires which are allow except for steering tires.

as long as the OP has the tire infated to the proper pressure and legal tread depth, he can drive as far as he wants with little fear of tire failure.

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Fair enough I guess...was something I read before driving route 80 from California to New Jerset and back again. I am certainly not going to to claim to be an expert though.

Just curious...are the 2nd wheels sometimes off the ground and not in use because the load is light?