Not sure what to tell you...I haven't had a barbell break on me. Is it a real expensive bar? If not I would shit can it and get a new one. I have a Pendlay and it is SWEET. There are a bunch of threads out there about what kind of bar to buy. If money is tight I would look into a Play It Again Sports or something like that and buy a bar there. Fixing your bar might be as expensive as buying one.
