Picking the Right R4 Air Conditioning Compressor
If you're trying to keep an older GM car cool, you're probably already familiar with the r4 air conditioning compressor and its distinctive, squat shape. Often called the "pancake" compressor because of its short, wide profile, this unit was the workhorse of the automotive world for decades. If you pop the hood of almost any Chevrolet, Buick, or GMC truck from the mid-70s through the early 90s, there's a solid chance you'll see one of these sitting right on top of the engine. ...