What did you do to your JK today?

[tJKrider]

I would get the helicoil kit

I was about the say the same thing. I assume the 3.8 heads are aluminum - there should be a helicoil to work with this. Maybe this one?

https://www.amazon.com/Heli-Coil-Helicoil-5334-14-Thread-Repair/dp/B0002SRF4O?tag=wranglerorg-20