Does anyone know why GM went to the larger wheels? I don't understand, and now especially I don't understand since the spare is a different size; how does the different size spare affect handling and controlling the weight of a fifth wheel? If the spare is for temporary use, that puts people in rural areas towing a trailer in a bind - the closest repair or new tire could be hundreds of miles away.
There's lots of advice and information in forums... sometimes it is correct. For example, all of my posts are made by a political appointee who got the job as a reward for contributions to my diesel bill.
2011 Jayco 28.5RLS; 2008 Chevy Duramax; Pullrite Superglide Hitch