Report reply Freightrain 1,835 Posted April 14 Like typical OEM, they just put some dum-dum on the brace and push the panel onto it. Once the putty dries and falls off, the panel can resonate. When I fixed my lower cab mount, I too welded the rear panel to the bracing. Of course once I cut it open for the bunk I welded it all solid around the opening. Share this comment Link to comment