To clear up Baer's question...
The Doran ball joints don't use grease because they are manufacturer to much tighter tolerances than SPC or Kinetix. I don't know of any race teams that use greased ball joints simply because what they use doesn't have as much play in it as what is used for street driving.
That said, i'm not a mechanic.. on a race team.. or smart. So take my explanation with a grain of salt.
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