cracks in rear bumper need fixing

["fluxmcfly" <bfreyguy@xxxx>]

Has anybody ever fixed any cracks in there bumper? I have a very 
small crack in the lower part of the rear bumper by the exhuast. I 
am wondering if this crack can be fixed with a fiberglass bondo from 
underneath the back, then use some type of body filler for the 
outside? My bumper is in excellent shape and hopefully I can make 
something work rather than buying a new bumper. Any ideas will be 
very helpful, 

Thank you

Brian 

bfreyguy@xxxx