I have a 2001 national dolphin. The OEM tire size is 245/70/19.5. For some reason the previous owner put drive tires on the steer axle. They are now cupping really bad. The OEM size seems harder to find than
225/70/19.5. I have already researched the size differences. I am okay with the slight drop in tire height. I will only lose about 3/4" in width. I am only looking to change the steer tires now. Would it hurt to change the tire size on the fronts now and leave the rears the OEM size till I'm ready to replace.
the replacement tires will/ should meet load ratings.
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The cupping isn't due to tire design.
I would have the alignment and balance checked before I replaced the tires.
As far as a bit smaller tire, as long as they are designed to carry the weight of the front axle, they should be fine.
The important thing is not to overload them.
No I do not believe so. The coach tracks okay. The tires on there now were not designed for the steer axle. The outside "knobs" are cupping creating vibration and bad road noise.
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