Looking at changing my 235/80 16E tires for a set of 245/75 16E Michelin Ribs on my 5th wheel. For those that have done it, anything I should be concerned about with the very slight difference in size...
I installed Ribs. They fit but are pretty close together. They seem to be a little larger in diameter than the Commercial TAs they replaced that were the same size. Still plenty of clearance for everything. Haven't had to add air in over a year. Expensive but trouble free. Just do it.