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Brad,
You are absolutely correct. Lippert is trying to develope a pin box that does do that. However, they build one and take it to some high pressure hydraulic press that pulls the pin in every direction imaginable. The last I heard, they had it to withstand several hundred thousand lbs of pull but they weren't satisfied with the low number of cyles it took until the thing blew apart. So, I don't know where that project stands.
Everybody, If I recall correctly, the 1116 pin box is a few inches shorter than than the 1621, Therefore, it will withstand higher weight ratings because, the 1621 is more of an extended pin box. I don't know why they are using them for these Montanas. The 1621 would be a better deal in my opinion.
Illapah, If that number was on a sticker on the pin box, I think that would have been the serial number for that pin box. I'm not exactly sure about that. When it came to pinboxes, Randy Bowling over there at Lippert would know all about that.
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