Those are a PITA, and you must remove the spindle to do the job -- have to figure in wheel bearing adjustment, etc.

You can use the Harbor Freight large ball joint tool if you remove the grease boot, although I'm not too hot on that, but be carefull -- you really want to use an impact wrench, not a hand wrench. We bent the tool putting one in.

$300 is about the going rate.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!