I decided to order some stuff for my Benz. Mostly preventative maintenance. I see that the tie rods can come as a complete set. Used to ordering just the ends. Given the price, I am ordering for both sides.

But then I see this center link thingy. Really dont know the steering setup well. Is this a part that I should replace as well? It appears just one is needed.

Any other parts I should consider? Already did the lower ball joints and upper control arms are on order.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car