Wondering if these dudes are rebuildable. Kinda hoping they are, pretty rad vintage look to them (and a whole lot cheaper than buying new ones ><) Any ideas? Also, i appear to have the 'old type' exhaust baffle. Looking in the exhaust end i can see the turbine-y thing down in there, but the baffle end is only about 4 inches long, and i dont see any way i could possibly wrap it with packing. I'm assuming this kind doesnt actually have any packing in the end, is that correct?