Axle Shafts - Front: Description
Axle shafts transfer power from transaxle to driving wheels. All axle shafts consist of a shaft and flexible Constant Velocity CV) joints at each end. Inner CV joint is splined or bolted to transaxle. Outer CV joint is splined to wheel bearing hub and secured by a nut.
There are 3 design types of CV joints. The Double Offset Joint (DOJ), Birfield Joint (BJ) or Tripot-Rzeppa Joint (TJ) design type. DOJ joint type consists of equally spaced balls between an inner and outer race. TJ joint type consists of a triangle yoke within a housing.
On Volkswagen models, inner CV joint is bolted to differential case drive flanges.