Clamps? They should be welded on. Bob On 6/1/2015 8:58 PM, I Erbs wrote: > > The tail pipes came off my muffler and I want to know if I should use > some compound on them? They had a small leak before I knocked them off > backing my Car off a trailer. Or Should I just crank down on the clamps > > Mr. Ira Erbs > >