I've had very bad luck with tires on my dually due to separation issues. I'm only getting 15k to 20k before this happens and 3.5 to 4 years. I only have the camper on the truck about 3500 miles a year...
The truck is a 2003 3500 ext cab two wheel drive diesel dually. Running stock size tires 215/85R16. I only had one front tire seperate,that was a BFG.rest have been on the rear. I thought about going to a large tire,but was afraid it would make the rear space even closer. Since three of the four rear are new replacement Goodyear and the other has 15k I'm just staying with them for now. As far as posting photos may be easy for some. Just like rebuild a Pontiac engine is easy for me...