I just went to the Junkyard and got a set of stockers off a 1 ton dually, was after the light for under the tailgate but someone beat me to it. Installing them is easy, hardest part is dropping the front of the headliner for the wiring. I was allowed to go into the yard and pull them off myself, So while i was there i measured them for layout also. Layed them out on my roof and drilled the holes. That first one hurt! Wired them up, ran the wire down the b pillar and tapped into the trailer wiring plugs under the dash.