Hairline crack in my hedder tube.

and TIG welded them inside and outside at the flange and collectors (just the outside of the collectors), then had em ceramic coated, they would shake violently during a burnout but was launching it off of the throttle stop so no dropping cylinders like a two step. lots of weight hanging off the rear, no supports and had zero problems with the welds. I think its all in the welding but some supports at the rear would always help out.
http://www.forabodiesonly.com/mopar/attachment.php?attachmentid=185472&stc=1&d=1288035480