If I were in your place I would take down your add and build out a new one from scratch. Set it up to get top dollar for your truck.
* Take the car to a clear area with good light during the day. Take 100+ photos of what a buyer would be looking for. Things like underbody, axles, birfields, under teh bellhousing, front and sides of valve cover, area around the oil pump cover, underneath rear bumper, bottom sill of all 4 doors, around hinges of doors, hinges of tailgate, tailgate lock mechanism and rust prone areas, all 6 seats, headliner, door panels, roof, under hood, top of hood, all 4 tires and wheels, etc...
* Then write up your listing to include every single bit of service history that you know of, be as detailed as possible even if you don't think it's relevant.
* If you want to spend a few bucks, pull a carfax yourself and add a screenshot of that to the listing
* And if you're feeling adventurous, take a video and publish it showing a full cylinder by cylinder compression check. Another video of the truck starting and walk around to hear the engine and exhaust. And another video of lockers engaging/disengaging and driving up to highway speeds and also between red lights.
Do that, and you'll get what it's worth. Don't do it and most buyers will just assume you're not telling them everything for a reason.
