Edmunds, kbb, black book show $7K+ for my trade-in. Why is the dealer offering Galves book of $5500?

Most of those sites are on the high side. Dealers have to go by what the vehicle is selling for in the market, at auction, etc. They won't give top dollar, cause they have to recondition the vehicle, repair anything that it needs, then advertise it, and sell it and make a profit.