will a gas fuel sending unit work on a diesel pickup?
i have a 1984 f-350 with a 6.9l. my fuel sending units need to be replaced. can't find
direct replacement. i need sending units that have a return to them. all that i can find
have just a supply line on them. can i block the return on the engine going back to the
tanks? or, where can i find the right replacement units?