hooligan wrote:
235/80R22.5 is a Michelin size. Equivalent size is 245/75R22.5, however, the 275/70R22.5 is also close.
Look at Load Rating, diameter, revolutions per mile and minimum dual spacing as well as rim size. You can compare various sizes here:
Tire Size Calculator
Dual spacing is determined by rim offset, if you measure between the centerline of each of the tires it will give you the dual spacing. (Extend the dashed lines to the tread to see the offset) HDS is half Dual Spacing or rim offset...

Another factor is wheel well clearance...
Thanks hooligan!
Do you have a tire dealer you like in Pensacola area for 22.5 tires?
We are headed that way and will need tires soon.
Would be great if I could arrange by phone and have them ready!