The electrical system in my 2-ton flatbed is shot, and needs replacing. I am looking at getting the wiring harness kit from Chevy Duty, but I'm not sure if it will be the right size, that is, if it will reach all the lights. If this doesn't work, I don't want to have to spend $100 finding out. Is there a good aftermarket harness that might work? If nothing else, I will resort to replacing one wire at a time, but I don't want to have to do that. Any help would be appreciated.