Does anyone know what thread the sender unit is? We have no gauge or light on the pickup since the engine conversion 7 years ago I’ve got a Tim gauge in the dash and the sender unit for it comes in 1/8npt thread and just thought I would check before ordering one that I don’t need an adapter! Am I also right to think it should go into the sender closer to the engine block rather than the on directly above the oil filter? (Arrow not Cross on pic) ignore the dirt it’s been sat for 4 years being used as a bench