Quote Originally Posted by F6Pilot View Post
Well, I contacted Mustang and received a reply from someone in support named Neal. Following are his directions:

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Hi, thanks for the email.

The F6B seat is a notoriously difficult install. What usually corrects your issue is to push the washer-spacer through the vinyl into the seat, so that washer is now behind the exterior vinyl but the spacer is still inside the seat. This should allow you to close up that gap.

If you still have issues, please reply with photos.
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I have yet to do this but immediately asked why this would be required on one side and not the other.........I guess he has been busy. YMMV
Neal is the same guy I talked with and was basically told the same stuff..He seems like a really decent guy and was as helpful to me as he could..Good advise on the rail issue, but the thing is on now and I will leave that way for now as it works okay...Thanks