Guys, I've replaced Chevy thermostats in the past but, on the '87 G/N, do I just undo the bolt that holds the locking C clip and pull the housing out? Is there any silicone used here or any gaskets that I need or is there just a factory O ring that seals the coolant from leaking. How is this sealed from leaking?![Confused :confused: :confused:](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f615.png)
![Confused :confused: :confused:](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f615.png)