My87Runner

Ok doing a a340h swap on my truck. When i got the trans the cable was pulled all the way out and would not push back in. Did not really think much about it until now. I got the trans running and as i am sure you know when i put it in gear i about snapped my neck. I ran the cable to my throttle linkage but i need to get it free moving again. Anyone know why it wont go in, also if i drop the pan what am i looking for? Do i just have to drop the pan or the filter and other parts too? just want to see what i am getting myself into.