Im not all that familiar with trucks (never owned one).I found this one on craigslist.

http://seattle.craigslist.org/kit/cto/2828054571.html

Guy says its low geared and only does about 55mph,but says he will throw in a freeway geared rear out of a 74.Says he will take $1800.Is that to much? (confirmed via email truck has no rust or dents and has new oak wood in bed)