[Jard]

You got it, really.
It is straight forward, drain the coolant, replace the reservoir. I did not have to pull anything else off, other than the battery strap to get a little wiggle room.

 

[Jard]

I have done it both ways. Left my line and replaced a friends.
Replacing it is harder, but you can just get a screw driver on the retaing clip and release it. Or maybe I just got lucky.

 

[Jard]

Also, I removed my fender liners when I got my truck, but that did give some room to work it from below too.

 

[Jard]

You can take an old heater hose, cut it length wise so it looks like a C, and use that as a dampening pad.