Zodiac MX8/MX6 Elite and Original Models Drive Shaft Assembly (Sold Individually) Zodiac MX8/MX6 Elite and Original Models Drive Shaft Assembly (R0525100) *THIS PART IS SOLD AS ONE. IT IS NOT A 2-PACK* The drive shaft assembly is a very crucial part of your Zodiac Barracuda pool cleaner models. It gives the cleaner the ability to move around freely and effortlessly in the pool. The drive shaft assembly is strategically placed on opposite sides of the engine assembly with wheel bearings attached to both ends. Giving it the ability of effortless rotation. This allows the cleaner s wheels to move and climb up and down the pool walls and floors for efficient cleaning capability. These parts are white with a stainless-steel end and are in the middle of the engine housing. This acts as a protective cover for all the surrounding parts that are also located in the same housing area.