Incredibly difficult, without a doubt. I wanted to go with studs instead of head bolts but another member pointed out that I might not have clearance to maneuver the head over the studs. That plus mounting the 2nd battery in a chamber beneath the driver's floorboard makes doing simple things just that much more difficult. Although I will admit that having the top of the engine right there inside the cab made a lot of this work doable while sitting in either the driver or passenger's seat rather than bent over the fender. But it also meant a lot of work from the inside, get out and work through the hood, get back in and work from the inside, get out and work through the hood again.