Where is the oil pressure sending unit located on a 1995 Chevy K-1500 305?

The oil pressure sending unit on a 1995 Chevy K-1500 with a 305 engine is typically located on the passenger side (right side) of the engine block, near the front. It's a small unit with one or two wires connected to it. You'll likely find it near the distributor, but slightly lower.

However, it's crucial to consult a repair manual specific to your 1995 Chevy K-1500 305 engine. The exact location can vary slightly depending on the specific configuration of your engine and accessories. A visual inspection with the help of a repair manual's diagram is the most reliable way to locate it.