This is a known problem and has been discussed several times on this board. I had the same issue five years ago when I bought our trailer and folks here pointed me in the right direction. Unless the situation has changed even further, I'm betting your original hitch head and the current upgrade have the same part number stamped on them even though the new part is obviously beefier. I actually ended up getting the correct part locally and inadvertently having one shipped from Cequent (Reece) and they ended up giving me the one they shipped rather than send it back, so I have a spare! That's service! There are still a bunch of those junk heads out there I'm sure, so it's going to take a while to weed them out. Some work ok and some fail, depending on the tongue weight and how it's adjusted. You should be fine now. My heavier upgrade doesn't even flinch at 1100 lbs and has given perfect service for several years now.