Best starter heat shield

[Jeepwm69]

Dad's old 83 sat up for awhile, and when I got it running again, I had to put a new starter on it.

Starter works great when the truck is cold, but after driving it, when I turn the key I usually get clicking (assuming the solenoid) and then it will finally turn over slowly and start.

Now from what I've found sounds like heat is affecting the solenoid.

Do the solenoid heat shields work ($10 Dorman) or do I need to get something else?

Anything else it could be? Starter tests good, so think it's just heat sink.