Changing tire size from WH installed 235/80/22.5 to 255/70/22.5?

[abarkl]

My used MH came with the WH original installed and recommended rear tires 235/80/22.5, and a set of replacement truck tires installed on the front by one of the previous owners 255/70/22.5. I'd like to stay with the WH recommended size but I'm also considering replacing all tires to the later.
Has anyone else done this?

[abarkl]

My used MH came with the WH original installed and recommended rear tires 235/80/22.5, and a set of replacement truck tires installed on the front by one of the previous owners 255/70/22.5. I'd like to stay with the WH recommended size but I'm also considering replacing all tires to the later.
Has anyone else done this?

[Oemtech]

Check the date code on each tire... Anything 5 years old or greater should probably be replaced.

A few things to consider:
1) Does the tire fit the rim... IE - some tires qit 6.75" rims and other require 7"
2) Tire height - speedo change
3) Distance between the duels
4) Tire rating - carry capacity
5) Construction - all steel side wall and tread belting