If I have a Equal-i-zer hitch rated for 400 tongue and 4000lb max trailer can I just buy the 1400/14000 bars to move it to a larger trailer I guess I might have to also swap the ball from a 2" to a 2 5/16" but is the head and the rest of it all the same ?

I did send a email to the company asking but who knows how long or if they will answer. Thanks.

 

Found the answer in case anyone else wonders here is a link
https://www.etrailer.com/question-224487.html