We've had our 16-hole dog box since 1999...
My truck has had minor issues along the way, nothing that ended up being major.
structurally, my truck is in super shape. My ball joints looks great and I've never had to replace a universal joint, as others have mentioned that around 100K miles they all need replacing. My new, wonderful (hopefully) mechanic (former fleet manager for UPS) says that the Universal joint goes because people don't come to a complete stop between forward and reverse and vice versa. He said he can tell I've driven my truck carefully. I did admit that sometimes I go barrelling through fields off road.
Anyway... He was looking at I think my suspension and some kind of bushing on the back end.... He said it looks like it's way overweighted and asked me to go down the road to the salvage lot and have it weighed...
I told him that I couldn't imagine there's a problem, but he said there should be some space at that bushing, but that you can see where the truck is right on top of it. I may not be explaining this right.
I weighed the truck -- it had stuff in it for the retreat (we were on our way to Wisconsin) and the trailer was attached. I didn't want to take the time to unhook the trailer, etc. because we were in a rush. but the truck alone (with trailer attached but off the scale) was around 11,300. The trailer (loaded with 4-wheeler, decoys, bumpers, etc.) was around 2,500. My GVW is 11,500.... And then we add a couple more people, six dogs and luggage....
My mechanic said that if it was near or over GVW there wasn't much we could do about it except replacing brakes more often.
I'm trying to figure out why we would have a box mounted that puts the truck so close to GVW when it doesn't even have much in it???
I'm sure other boxes weigh the same? Mine is stainless. I told him this is a standard configuration -- 16 hole box on an F350 superduty.
Just curious... This is the first mechanic to pick up on this and I was kind of disturbed by it, as I work very hard to keep the truck in prime, safe condition for me, the dogs, my clients.