mountaindude

I have a 1987 4x4 pickup, 22r. I drove to work when I went to go home it wouldn't start. I got the truck home, and began working out whats wrong with it. No spark. I replaced the cap, rotor, plugs, wires, coil, and finally the distributor. I'm not very adept with a voltage tester, so i had a friend who was come over and check out the problem. He said everything was good up to the distributor (before I got a new one). He said it was getting power in ,but not sending it out. I'm at my wits end. I must be missing something, but I can't seem to figure it out.