What type of outer CV joints are used on front-wheel drive vehicles?

The outer CV (Constant Velocity) joints used on front-wheel drive vehicles are typically of the fixed type. This design allows for efficient power transfer from the transmission to the wheels while accommodating the up-and-down movement of the suspension. Fixed outer CV joints maintain a constant angle and provide a stable connection, which is essential for the drivetrain's performance and handling. They are engineered to reduce friction, which minimizes wear and improves durability.

In contrast, other types of joints, such as sliding or variable types, serve different purposes and are not typically utilized in the outer position of front-wheel drive applications. Sliding joints allow for axial movement, which is not necessary for the outer joint, as its primary function is to facilitate turning and handling while maintaining a consistent connection without varying lengths. Variable joints are designed to handle a wider range of angles, which is more commonly needed in different parts of the drivetrain or in vehicles that have a different setup. Thus, fixed outer CV joints are specifically suited for the unique requirements of front-wheel drive vehicles.