321RLTS pinbox

[poohbear]

I am having a heck of a time finding a replacement pinbox for my 2011 321RLTS Eagle. I Want a Trailair or MoRryde etc cushioned type. My problem is the Dexter numbers, no one can x-match the p/n. It has 2, AF7926 and a 221-0006-00. Its 12in wide is the problem and rv has a 14500 gvwr . the 12 inch ones that match the bolt pattern only have a 14000 gvwr. Help, I don't want to spend $2500 on a BD3 air hitch if possible.