Just finished, took about 30 minutes give or take.
The switch will come with 4 little push in locks. Replace them as your old ones will probably be full of play when you move the bars around. There is other ones that the other end of the bar goes through and the plastics flips over and snaps on it.
(One end of the bar is a smooth surface and the other has a grove to lock into the small plastic connectors. Makes it easier to reassemble if you forget which one goes where.)
I started by removing door cover, then remove the bar end at the inside handle and pull the lock bar out of its channels. Then remove the 3 torqz bolt holding the door mech in place. move it around. I removed the outside door handle to make it easier, it has 10mm nuts holding it in place one on each end, and one in the middle bottom.
The switch itself only has 2 small torqz screws holding it on. Their is a white sleeve that you will need to remove and reglue onto the new switch. It is for the lock to sense what position its in.....clean and reapply dielectric grease.
I soaked mine real good in simple green and scrubbed what I could reach and sprayed it out with water.
Reassemble and you should be good to go. I cycled about 20 times inside the cab and it shut off everytime.
Pics are new switch and new switch w/old full assemly.