Could I get a step by step guide to doing a coolant flush? I have never done it since I’ve owned the truck and who knows when it was done last. I will be replacing the thermostat as well. Thanks

 Check this out.

 

Ahh thank you didn’t think to look in the articles.

I've been meaning to do this soon. Thanks for the link to the article. Do you guys ever use a descaling flush detergent or just run the fresh water through?

I just ran water thru mine. Did mine last weekend. Ran enough water thru it to fill 5 or 6 times even some after the water appeared clear. Running a flush thru cant hurt if you want to.

Just done the flush just last week. 350k miles... Still rolling with the OEM water pump and radiator. Heat core replaced once not from scale failure but I found a crack in the water neck that was weeping coolant. As I've documented my radiator and block condition now since new. Still to this day using only well water or creek water never used distilled water. 

 

Planning to replace hoses as well. What temp thermostat do I want? And where is it located. I didn’t see a thermostat location in the article. 

190*F thermostat.

 

3 bolts at the upper hose fitting on the head. Is the thermostat cover.