The C.V. joints can be replaced individually, but this tends to put undue stress on the other joint . Many remanufacturers now offer replacement axles, and usually at lower cost than purchasing individual C.V. joints.
Wheel bearings are also susceptible to dirt and also to heat .
If the bearing is subjected to heat, for example by over-tightening, it can lose it's grease and become galled and require replacement. Beck Arnley 3. A full range of wheel bearings and seals by various manufacturers is available from stock.