brother bought a 1999 F250 last year. hasn't used it much, but is replacing his dodge v10. pulls a 28ft 5er last trip out, said he has a lot of porposing??? he thinks he needs new shocks. ...
Make sure he understands this article. Check out videos on this subject so you know what's going on.
And if he gets a little fuel leak around center of the "valley" fix it right away. Don't wait thinking its only a little leak. Fuel leaking down into starter costs more than what they should IMO