Our 40 ft Damon Tuscany has Yokohama tires on the front and Goodyear on the back both size 275 /70 R22.5. These tires were on the motorhome when we bought it. The back tires will be 7 years old this summer and we intend to replace them with Michelin tires through FMCA's program. The front tires are only 3 years old.
Should we replace them as well and have the same brand all around? Also the Goodyear tires are load range H. The Michelin tires in the same size show load range J. Why the difference?