Cheap junk tires installed OEM. Get rid of the others before they do the same.
I was running the GY G114 17.5s and had one let go on the way to last years Rally. Local Tire Dealer in Elkhart had a great deal on the Salun 17.5 so have 5 new tires and new wheels delivered to the campground. Only 4500 miles on them so far, but no issues.
Michelle & Ann
2018 Chevy 3500HD Crew Cab High Country DRW, D/A, 2016 RW39MB, Dual ACs, Auto Level, Auto Sat Dish, Stack W/D, King Sleep #, 17.5" Sailuns w/Disc, MORryde IS & Pin, Comfort Ride Hitch, 5.5 Onan, Res Fridge & Induction Cook Top