I have a 2005 Ford F250. I replaced the Trans pan with a factory Motorcraft seal. Was good for about 4 months and it is leaking again. It is leaking out of the back of the pan on to the exhaust. Any ideas of what to do. Seriously aggravated.

 

The reusable gasket uses no sealer, if at any time another type of gasket was used distorting the pan/bolt surface, or a sealer was used and scraped off and compromised the trans smooth aluminum surface or the pan surface ground or scraped leaving the surface irregular/sand scratched/rough then the pan could bleed. Or if any pan bolts are striped, but you make no mention.. Always check the pan for flat all along the bolt surfaces with a straight edge before a reseall, more so if it leaked previously. A 'smooth' flat, clean surface on both sides of the pan seal will make for a good seal.