15 minutes or so is all it took. And I'm mechanically challenged, so it should be faster for anyone else. One piece of advice: get the spare out of the way. I left it in there and it was in the way the whole time. Also, you'll need a decent length of hose....I'd get at least 10 ft to be safe and cut off the excess. They didn't give me a long enough piece so I had to splice a second hose onto the first with a junction. Pretty ghetto!Way cool to see another Gen 1 show up. These trucks are surprisingly capable and a ton of fun to work on and drive. All the years I've been bouncing around in my rig and I haven't yet done the diff breather relocation. How long did that take you?