Is a 295/50 R15 possible?

Thats one of the weird things about a-bodies, The measurements I took don't seem to jibe with other people's. I am going to go out on a limb and say that every body style of a-body is different, pre 67, 67-69 dart, 67-69 baracuda, 67-69 valiant, 70-76 duster, demon, dart sport, etc... they all seem to be different. I am also willing to bet that production variences and inner structures must be different too. Thats the only thing that makes sense to me.