I need a ball joing on my 1991 300D. It has 81k on it. New England roads finally killed one ball joint, and I have been told it is easier to just have the whole control arm changed out, which has new bushing and the ball joint itself.

My question is, should I have both changed, L and R while they are in there? Is this more efficient to do this- i.e. is there a labor savings to do both? Thanks friends. John Peterson

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1994 E420 43k (pickup, solid)
1990 300D 2.5 127k (sold) (now driven by friend)
1991 300D 2.5 73k (sold) (incredible car)

Are you talking about your upper control arms? Might as well do them both, they're cheap and easy to do.

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1985 CA 300D Turbo , 213K mi