Location of Oil Pressure Sending Unit on 1979 400m in Ford Bronco?

The oil pressure sending unit location on a 1979 Ford Bronco with a 400 cubic inch engine is on the engine block, near the oil filter. It's usually on the passenger side (right side) of the block, but it's best to consult a repair manual or a detailed diagram specific to your year and engine for the precise location. The location might vary slightly depending on specific engine configurations.