[jocko]

I'd say the current wheels and tires won't allow it to sell for more than the difference between what it would sell for with steelies (and steelies will attract more interested parties) minus the cost of the new tires you're talking about.

If you think there's a chance you'll want to use them, hang onto them, - if you KNOW you won't then I'd sell them separately as you'll get more $ in the long run - you'll be selling a truck to someone that wants that truck, regardless of its tire/wheel combo - and you'll be selling the tires/wheels to someone who wants exactly that tire/wheel combo, and both parties will be willing to pay for something they want, regardless of what wheels/tires are on the truck and regardless of whether or not a truck is attached to the wheels/tires. But, it is more work for you - selling wheels and tires can be a pain - but if it's the ones I'm thinking you're selling, you won't have any problem at all.