wont shift without help

95 2500 diesel automatic worked fine. Got in and wont shift out of park. Broke first cable, replaced and still wont shift without some help from underneath. Column works fine without cable hooked up. Any suggestions?

is the cable set up right? when your underneath it do you have to wiggle it to go into gear or jus pull it a little more??

When underneath I just give it a little help.

You may be able to shift out of park while turning the key to the on position and then just start it in neutral. The brake transmission shift interlock is probably shot