Toyota Repair: unknown problem, jumper wire, battery connectors

Question
I have a 1998 Toyota Tacoma with a 2.4 liter engine.  I have replaced the starter, relay, altenator, battery, and battery connectors and when I try to start the truck I can see the motor turning but it won't turn over all the way.  The motor will go click, click, click and the motor will turn over one click at a time.  When we push start it, the truck will fire up right away and it runs fine.  Out of ideas and very frustrated.  Please help!!

Answer
Bypass all the relays etc. Disconnect the solenoid wire from the starter and connect a jumper wire to the starter, making sure the key is off and out of gear(manual trans)connect the other end directly to the positive side of the battery, if the starter now cranks normally it's good but if it acts the same way you have a bed starter.