Quote Originally Posted by t2p
Yes - same issue here.
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I had Mastercraft Courser HTR Plus - 255-55-18 - installed. I believe the Mastercraft tires are manufactured by Cooper. The Courser HTR Plus also has a 'beefy' sidewall with a raised portion to protect the wheel.
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They had difficulty getting the tire to seat properly on the wheel. They used 'tire lube' on the tire and were forced to use a much more psi (75 or higher) to get the tire to seat on the wheel.
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I guess I will stay away from them as well.

They were using over 100 psi and still could not get it on. They were afraid of damaging the wheel (or one of the workers).