You'll need a 1/2" 18mm socket with at least a foot and a half of 1/2" extensions just to be safe a ratchet and a big breaker bar just in case.
A hydraulic jack to lower it (recommended)
It is 4-6 bolts, 4 are easy to see and two are under the bumper. I took a step drill bit and made a big ol hole in the bumper below the bolts so i could get the exstension in there to loosen them oh yeah pb blaster and If he has the thick gas tank skid, and you dont Id get that too.
Youre going to need a drill with a 1/4" bit to drill out the plastic rivets holding the bumper to the tank, then pull out the hitch bezel and the hitch will come out of there without removing the bumper. get all the skids if you can