1993 Ramcharger Canyon Sport 5.9 gas, I am having a bad engine vibration when I rev the engine in either park, neutral or driving . I have have replaced so many parts including engine mounts (helped a bit) harmonic balancer (seemed to make it worse). Transmission has been rebuilt with new torque converter. It was vibrating before trans was done. New exhaust from Y pipe back, did a full tune up, checked all fuel injectors, did fuel pressure test (which was in spec), and did a compression test (which was good). PLEASE HELP!