I had two sets of Michelins crack on me,
one set on my 2500 chevy pickup
one set on my Toyota van
I do like the way Michelin's ride and drive,
current set of Michelin's on my Dodge 2500 diesel are near the wear point, but ride and drive good and no cracking, so I will stick with then until they hit the wear marks.
I bought replacement Cooper's for the wife's van, they seem to be fine, as she is not complaining.
would I buy Michelin's again for my truck, yes, but will have to check out the price.
two of the local tire dealers recommend "Firestone transforce HT 10ply"
they run them on our local ambulances with good results
who knows what I will buy when ready.
but I would get those cracked tires off my truck, who knows how hot the tread is on a 100 degree day at 65 mph with a big camper sitting over the axle.
can you handle a blowout at 65 mph.
I would not want to be riding with you!!!!!!!!