Which type of joint is the most commonly used outer joint on FWD vehicles?

The Rzeppa joint is commonly used as the outer joint on front-wheel-drive (FWD) vehicles due to its ability to efficiently transmit torque at variable angles. This type of joint is designed to allow for a greater angle of articulation compared to other types of joints, like U-joints, making it well-suited for the tighter turns characteristic of FWD systems. The Rzeppa joint's design incorporates multiple balls that can rotate within a spherical housing, providing smooth movement and flexibility while maintaining strong torque transfer between the drive shaft and the wheel.

In FWD vehicles, where space constraints and suspension dynamics play significant roles, the Rzeppa joint performs excellently in navigating the sway of the suspension during turns. This joint also minimizes vibrations and noise, contributing to a smoother driving experience. Its prevalent usage in the automotive industry, particularly for FWD configurations, is a testament to its reliability and efficiency in dealing with the requirements of modern vehicle dynamics.