I read this on GM's web siteas well. My 99 hitch pin hole was enlongated and so was my 2001 after towing with a heavy TT. I had a local guy build a new hitch(what a mistake) welded it on to frame. Now my new welded on hitch is enlongated. What a bunch of BS. This problem causes a klunk on occasion when accelerateing off a stop. Any of you guys with the Titan towing heavy loads notice this pin hole enlogation problem? Now I haqve to get that welded on POC off. I saved a buck. Like I tell my customers "being cheap can be expensive". Will I ever learn?