Alright I've got an 82' Diesel Jimmy that had been converted to gas. I bought a new sending unit to fix the gas change problem but the "new" sending unit is wired for a gas sending unit. This is because there is 1 stud on the surface of the unit for a plug in. My wire has 2 holes (for 2 studs) and an area for a prong. I went to the Chevy/GM dealership for the right one, and GM quit making the diesel sending unit. My gas gage is being a PITA, how I can resolve this so I can read my gage?