The Worm does have a left-handed spiral, but I'm not sure those actually count as "Threads". I told you to think OUTSIDE the box. Not worm, but warm. Bill ----- Original Message ----- From: "Shaun" <shaun_mcgarvey@shaw.ca> To: <virtualvairs@skiblack.com> Sent: Monday, July 26, 2004 11:44 PM Subject: Re: <VV> Left Hand Threads? > The steering gear worm?