YES!!!
Learn to troubleshoot instead of throwing parts and money at it.
I DO NOT mean that in a flippant mean manner. I mean, learn to fix it
WHAT YOU NEED to work on electrics
A multimeter, a 12V test lamp, an inline spark tester, and a selection of "alligator clip" leads
You need a FACTORY shop manual which you can download, free, from MyMopar
http://www.mymopar.com/index.php?pid=31
Electrical is in "section 8"
Also from that site, you can download some simplified, 3rd party wiring diagrams which are sometimes easier to follow
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Next let's pin down the symptoms and narrow it down a bit more:
We need to discover EXACTLY what it is 'acting like'
First, listen carefully to "under the hood." Open the hood in a quiet area, use a second person if you need to. Twist the key to start. Hear anything? One click? One big clunk? A sort of a buzz?
Turn on the headlights and twist the key to start. What happens? They remain bright? Go somewhat dim? Go completely out?
You have a multimeter? Clip your multimeter to the battery posts and take a reading, then turn on the headlights. What is the reading? Maybe the battery is dead, maybe the battery connections are dirty
With the meter connected, twist the key to start, hold it and read the meter. What does it read?
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HOW THIS WORKS
Somewhere on your firewall you have a starter relay that looks like this
When you twist the key to "start" the key sends "start" signal on a yellow wire out the ignition switch connector, through the firewall connector, and to ONE of the small push--on terminals of that relay which is the COIL
The second push-on terminal is the other COIL connector. It runs down the firewall, over the bell housing, and to the neutral safety switch. The transmission must be in park or neutral and ground the switch to energize the relay
The "big" stud is BATTERY, hot all the time, and also is one of the contacts in the relay. When Energized, the power goes "out" the exposed "square" screw and sends power down to the starter solenoid
SOME CHECKS
Hold the key to "start" while moving the shift lever from park to neutral, listening for it to try and crank
Disconnect the small wire going to the neutral switch, and ground that relay terminal with a clip lead. Try to start it. If it cranks, then the NSS has a problem
Take a screwdriver and jumper across the two large terminals on the relay. This should energize the starter.
More to come, see what you have with this