i haven't adjusted any thing yet. i crawled under and saw that all is connected and moving, the cable is adjusted all the way to shorten it. i have not pulled the rotors yet to check the linings or adjustments. i can't find an external hole to adjust them.. so i guss i have to pull the rotors.
Its very easy, jack up the back of the truck, take the wheel off, give the cap a hard, hard wack with a rubber or rawhide mallet (you could use a regular hammer, but I like to be safe)
Slide it off, inside there is a star gear that turns to adjust, ratchet that up, try the cap back on every half dozen turns or so, as soon as it wont go on, back it off a few turns, you are looking to be able to turn the wheel freely, but not have it spin on its own (you have to do these adjustments with the ebrake/brake off, so you need to really chock the front wheels)