Check the clutch adjustment, if you can have someone use a feeler to stick in between the clutch disc and flywheel or pressue plate with the pedal depressed like you drive it see how much air gap you get and let us know scope
Mopars are famous for dragging clutch disc runaway
Which makes them hard to shift and put into gear work
Good luck, you CAN fix it thumbs

Last edited by Cab_Burge; 06/15/17 10:37 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)