I purchased my ACE unit 4/15 and finally, after almost 1 year of trying to resolve the "shimmy" and rattle "issue with my RV with virtually no help from the dealer and little support from FORD, GoodYear has agreed to replace all 6 tires on my ACE.
In summary, actually I found a DEALER that help me determine how to resolve my issue. Thank You Camper's World in Cheichester NH