cruise control question

[ciamcoop]

So when I swapped out my auto for a manual I just grounded the neutral safety switch so it'd crank. Well the cruise didn't work after that, I thought it's because the cruise thinks the truck is in P or N. So I put the neutral switch wire on a switch so I can unground it thinking the cruise would work. Well it works but not right, hit the set button and it sets but if you go downhill it doesn't coast, but if you go uphill it gets after it and never backs out. Anyone ever deal with this? Any ideas?