The welder boxed in the frame rail with 1/4 inch plate. A patch of sorts, the repair will postpone the demise of the old trailer. Rust is inevitable and I suppose that it didn’t help matters that I sped the process by dipping the ill protected iron in sea water over the last 3 seasons. A new trailer is a significant piece of change however, and thus the incentive to slow the cancer is on going. In a chain reaction this fix was precipitated by a faulty brake system with a seized (rusted) wheel cylinder. The neighbor, from the other side backed her minivan into a fender crushing it. Actually, the rust had mostly done its work – the careless driver only finished the job. Mounting new fenders, I discovered the structural weakness on the frame. Then heat from the welder’s gun did a number on electrical wiring for the running lights. Hopefully stringing new ones won’t turn up any more jobs.