All Mk2/3 Golfs, Jettas, and Corrados have one rear shock mount per side. Technically speaking, they "suck". That's because a lot of wiggle is allowed. This makes it hard to hold a consistent line around hard corners. Then, it's only exaggerated when the inner rear tire comes off the ground and full weight is transferred to the other side. Instead of a progressive and smooth drift, the tail often ends up wagging the dog. -not fun but easily avoided with this product.
Sold in kits to complete one vehicle, these upper mounts deliver more control and feedback from the rear suspension. The parts are inexpensive and easy to install, so get your act together and have more fun behind the wheel.