https://www.youtube.com/watch?v=E--Hz75a0TM
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I'd replace the tensioner and belt at the same time.
Looks like there is also a lower.
Agree with earplug, replace all three pulleys and the belt, cheap insurance.
If you're still not sure try posting the pic on dodgetalk.com. I've used the info from guys at the forum before and it's always been sound.
What do you call it?
Fooked
Wow that thing was gone