if your ahead of the payments VS the trucks worth. Sell it. Find a daily that would be more useful and save $$$$ on no payments.
Even if your Juuuuuuust ahead or close to ahead on it. List it on CL. List it for 6 months if thats what it takes, but put the asking price high enough to be profitable. There are buyers for EVERYTHING. It doesnt hurt to try and make a buck.