A lot of very good information here on grounding, but we're getting away from Billy's original intent. When he lifted the body on the truck for header clearance he lost his solid ground connection between the cab and the frame due to the insulating spacers. This meant that everything electrical in the cab was "searching" for the best ground it could get, and that happened to be his throttle cable which was "welding" itself together. Billy's problem is solved, and he offered a Public Service Announcement to remind us all that a good ground is critical, and that when making changes our ground path can get compromised and not be apparent.

Thanks, Billy, for the reminder!!