What would cause the radiator to blow out at the upper side on 2003 Chevrolet Silverado 2500 HD

We're hose Conection

Asked by for the 2003 Chevrolet Silverado 2500 HD
3 answers
overheating
repl rad and ck cooling system and poss head gasket issue
Motor mounts in good shape? If not can put a lot of stress on rad. through hoes connection.
Just have seen it before. But these plastic radiators give a lot of problems.