This might not meet your needs exactly, but is worth checking out.

http://www.racetech.com/shopping/shopdisplaysubcat.asp?id=13&showPage=street
http://www.suspensiondirect.com/catalog.htm

Pete

--
Pete Snell
Department of Physics
Royal Military College

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For a successful technology, reality must take precedence
over public relations, for nature cannot be fooled.

Richard Feynman.(1918-1988)
Personal Observations on the Reliability of the (Space) Shuttle.