Starter cotter pin...

You need to take it apart to fix it and that may be not easy. It's been YEARS since I've been into a Mopar starter, but many of them have a WIRE WHICH MUST BE unsoldered in the solenoid connections. It's easy to jerk it apart unknowingly and break that wire

Run over to MyMopar and download some service manuals, free:

MyMopar - Mopar Forums & Information - MyMopar Tools/Reference

This example is out of the 72 manual, page 8-10. "Unwinding the solenoid wire" at top right is what I'm talking about

solenoid.jpg