Donstar was right on about negotiating. On the old 4 square, always stay in box 1, the sale price of the new rig, ALWAYS! Also, I'm not coming down on the side of the dealer here but it can be beneficial to understand all sides of the transaction... They can mark the other used truck or your trade in truck at book but are they getting that? They need room to negotiate down from that list price and still profit so keep that in mind. Running a stealership isn't free money. The advice above about FB Marketplace is spot on. Do not feel loyal to the dealer, they have zero loyalty to you. You'd be lucky to get a free hat for your loyalty there so yes, it is worth the trouble to clean up your truck, take some good pics, list it a little above book, have room to negotiate down a bit and still feel good about it. You'll have more cash in your pocket, even after any additional tax. In the last year I've listed 2 vehicles on Craigslist AND FB Marketplace. Both sold on FB. Sent from the demons in my head