Question on Tires 1972 Int Ambassador

[Alex]

My 1972 Ambassador has what I think are the original tires. The sidewall says, 7.00 x 15. Does anyone know what is the current tire size for this is ??? What is the recommended tire size for my unit, which is a 31 foot, dual axle, International Ambassador with approx 3200 GVWR per axle?
Thanks

[wahoonc]

Alex,
My 75 International which I would assume is very similar to yours is currently using ST225/75D15 tires which are rated at 2540# @65 psi. The owners manual calls for calls for 7.00x15 6 ply rated tires. They look about right for the unit and they tow just fine.

Aaron