Thanks ill have to look at a core ive got swe if i can figure it out that link is a huge help.Here is the manual for the DB2 pump. If you read the description, apparently it was originally designed with a manual lever shut-off, and the electrical solenoid shut-off is an accessory addition to the pump designated by some lettering in the model number. If you could find a old tractor with one of these pumps on it, you could probably find the manual cut-off on it.
More or less no electricity, be able to positivly turn ot on or off if neededIs the end goal to make the truck run and drive with no electricity or to be able to turn it off with a broken solonoid? Because a chunk of steel plate cut to fit your intake or a pice of solid plywood will do the shut down just fine.