Measure from over hang panel to bottom of pin box on each side
From your pictures it looks like it is tilted ------roadside down more then curbside
(curbside top forward bolt hole in pin box looks closer to over hang panel then roadside top forward bolt hole)
Pin box welded in crooked?
Pin box structure (support arms, braces etc) cracked/busted welds
Side wall bolts broken?
Have to drop over hang panel and thoroughly inspect ALL of the over hang structure! '
Any movement in pin box when you hitch/unhitch?
Easy to check ...just hitch up and then carefully watch for movement as you raise front landing gear legs shifting the weight from legs to truck and then back onto legs as you lower them to unhitch