Your talking about the mechanical ( no Hydraulic ) clutch linkage, its biggest problem was the 'Long' type clutch cover with centrifugal assist finger weights which required large pedal pressures compared to later diaphragm types, along with any engine mounts that allowed the engine to move around in the engine bay... pretty hard to modulate clutch engagement when the whole engine is going walkabout with this system.
This setup is OK under 'normal' RPM & lower power operation, but you will have to decide on whether to fit a torque control arm to the engine block & try to limit engine movement along with a later type clutch cover, or bite the bullet & fit a hydraulic M/Cyl & internal TBrg. Check whether your car has a large coil spring up under the dash that acts as an 'overcenter' assist in clutch release-- if you do go to a diaphragm cover you must remove this.. it will cause the pedal to stay on the floor @ high RPM if you should be inclined attempt to do a fast type shift to prevent anything MOPAR from blocking forward vision on the way to church.
I will send Dan an email, if I have problems with reply I will give you info to contact him with. Sometimes our 'southern foreign' email addresses seem to earn a one way trip to the spam bin.

I will send Dan an email, if I have problems with reply I will give you info to contact him with. Sometimes our 'southern foreign' email addresses seem to earn a one way trip to the spam bin.