Although outboard joints tend to wear faster than the in board ones, the decision as to whether to replace both
joint when the half shaft is removed depends on the circumstances. If the vehicle has low miles and joint failure
is the result of a defective boot, there is no reason to replace both joints. On a high-mileage vehicle where the bad
joint has actually just worn itself out, it might be wise to save the expense and inconvenience of having the half shaft
removed twice for CV joint replacement.