I can't get the hydraulic line out of the old slave cylinder on a 1987 Ford Ranger pickup. Should'nt it just pull out of the old slave cylinder? Is there a special tool needed to get it out or should it just pull out?

Once you have undone the gland nut that presses on the flare of the pipe and holds it in, the pipe should just come out. If it does not it must be rusted in, Try spaying some penetrating oil in the threads and leave it overnight. Try wiggling and rotating it carefully to release it. If it still refuses to come out try some heat. If that fails you will have to replace the pipe and slave cylinder. (If the pipe is rusted in, you are most likely going to find that the slave cylinder is going to be badly corroded inside as well).

Most I have seen are threaded.......If it has never been changed It is surely frozen...You can try saturating it with PB blast penetrate every other hour and let it soak overnight...I have had to do the same type thing on a mazda truck.....If you are changing it and it dont come out you can make your own new line....they have unions that work very well and dont leak if installed properly....also you will need a small hyd. line bender.