:smile: i recently put a 401 in my 73 cj5 it originaly had an automatic behind it so to put it in my cj with a t18 i bought one of those flywheels off of ebay it runs great and sounds good i took it down the street and i get a bad vibration as the rpms come up the harmonic is original to the engine my question is has anyone had this problem with these china? flywheels? or could i have cramed the pilot shaft bushing in and the pilot shaft is wobbling around? anyone have ideas other than what i expect is the problem?
