I undercoated mine with Fluid Film and pretty amazed how awesome the product works. I'm going to spray the inside of the frame probably this weekend so its ready for winter.
https://www.fluid-film.com/
Didnt do anything on the Jk today but wanted to share what I did on my TJ. I flushed my heater core since the heat wasn't getting hot. So much junk came out and I have heat again.
lol, I misread the original post and thought you were looking for a place to buy factory part, guess that's what happens when half asleep in the morning