I just had my front end on my 300SD rebuilt. I used new tie rod sections. They cost a few dollars more but in the long run they are worth it.

You also want to make sure that your steering damper is replaced. It pretty inexpensive, maybe $30 or so.

-George

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'81 300TD (White) 225,000 miles
'85 300SD (Burgandy) 239,000 miles
'86 300SDL (Silver) 340,000 miles