The Protex range is comprehensive for their brand new Constant Velocity Driveshafts. They come complete with the inboard and outboard CV joints and high quality Protex Rubber CV Boots. The power of the Engine goes through the driveshaft at an angle (this allows for suspension movement) to the cars wheels, mostly on front wheel drive cars and AWD vehicles.
CV joints are protected by their rubber boot. It's important to check these boots regularly as they can tear or crack because of their location under the vehicle. These splits in the CV boot allow dirt in, causing the constant velocity joint to wear quickly.
If you hear a knocking noise from the front of your vehicle when turning it could be a worn out CV Joint.
CV Joints work hard. They must tolerate 20cm vertical suspension movement and 50cm side to side movement for steering. Front-wheel drive cars have two drive shafts, or half shafts. There are CV joints at each ends of the half shafts. The CV joint that attaches one end of each half shaft to the differential portion of the transaxle is called an inboard. Inboard, or plunge CV joints must accommodate the in-and-out movement of the half shafts as the suspension operates.