Radiator replacement

Hello,

Here is a guide that should help you see what you are in for when doing the job. You might need to vacuum down and recharge the air conditioner if you can get the condenser unbolted from the radiator before it is removed.

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

This guide can give you an idea of what you are in for when changing the radiator out with diagrams below to show you how on your car.

https://www.2carpros.com/articles/how-to-replace-a-car-radiator

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.

Those look like the two rubber mounts that the locator pins on the bottom of the radiator fit into. If you still have the old one you removed look at the bottom at both ends where the tanks are and see if there are pins sticking down that the holes in those mounts slide over. If you discover that is what they are, look on the vehicle itself and see if the old ones are still installed. Sometimes a replacement part will fit a few models that use slightly different parts. They will include the "other" parts just in case they are needed.

The problem is that those two parts may not be required for your vehicle. The Montana has a few options that would use rubber isolation mounts like those. The folks selling the radiator include those in the event you need them, but if the radiator is mounted good and is not loose at the top or bottom you should be okay and do not need them.

The issue with the manual is the same thing I have, they do not show every part used on every version.
They also could be the two parts on the top of the radiator supports marked here.

WOW! That is a lot. A radiator is around 200 + labor. As far as replacing the head gaskets, I would estimate around 600. 2,600 is way too much unless he is using gold plated parts. I strongly recommend getting a second opinion. I would say around 1K for everything should cover it. However, I don't know where you live or the labor rates.

Go to the attached site for directions:

https://www.2carpros.com/articles/mitchell1eautorepair-car-repair-manuals

Let me know if this helps.
Joe