I've done it last year when I was replacing leaking condenser. I can't remember a thing which means it was trivial.dubaidrift said:
Getting right drier is not trivial at all. In most parts store catalogs they have entered a type that is (if I recall correctly) from Discovery, and it does not work. I figured this out when I had already bumper off. Had to play with years/engines a little bit to find out correct one by picture.
And make sure you have spare o-rings for sensors, My drier came only with o-rings for pipes, I had to buy o-rings for sensors. Those little things tend to catch me by surprise whenever I'm in the deepest end of the hole, so I hope I can spare you few bad words.