Radiator change

That is an A/C condenser. That is wise to change at the same time while you're in there, cheap, and what I did. It wears out the same way a radiator does.

If you press the schrader valve on your A/C service port, you are releasing refrigerant into the atmosphere which is illegal. And reducing the amount of refrigerant in your truck which will cause it to malfunction.

If you need to label something, label it. How you do that is your choice. There are many ways. Masking tape and writing. Pictures. Paint markers. Black sharpie. Whiteout. etc.

 

Depending on what brand radiator you got, you may have to swap some spacer thingys where radiator mounts to frame. I think the ATF running through the radiator may just be a line going through, I don't think there is actually a reservoir in the radiator that holds ATF. That’s how it was on a Lexus ES350. You can check yours to confirm. Point is, ATF loss is minimal but still good practice to check the level when done. Maybe, do a drain/refill while you’re at it.

 

I have done a drain refill and checked the levels before, pretty easy. I just had the dealer do a full flush at 150k so the fluid is 200 some miles old. It seems like I only lost a couple drops but it can’t hurt to check.