64 Dart Gt 4 speed won’t shift into gear ??

Hi guys, I have a 1964 dart Gt 225 4 speed manual. I put in a new clutch, pressure plate, push baring( the clutch kit) and with a rebuild trans and now I can’t shift into gears when the cars is running. I’ve already adjusted the pedal linkage and the shift linkage and still no luck. I have adjusted the pressure plate and clutch as well and made sure the clutch was installed correctly. When the car is on I can’t shift and only grinds hard if I try to put in reverse or another gear with clutch pushed in but when it’s off I can shift freely to any gear. I’ve looked at all over the internet and tried all the different suggestions but still no luck. Thanks if any one can help.
Did You change the pilot bushing in the crank? If so, did You check it with a spare input shaft, or install the trans w/o the clutch & check that it's not too tight?