For Sale: How much do you think I could get for my pickup?

search used cars?

I'm interested in Trading/Selling my 1989 Chevrolet K2500, but I don't know what a fair asking price would be. Can anyone help me out? :)
My pickup specs are as follows:

** UNDER THE HOOD & TRANSMISSION**
- 131k Miles
- 350 Engine, around 45k on Rebuilt engine. Synthetic Oil used during every oil change (Changed every 3k, Valvoline MaxLife 10w-30)
- Turbo 350 Transmission (3 speed Automatic) with Overdrive
- Rebuilt Alternator
- New Water Pump
- New Battery about a

Used Cars For Sale