ezzzzzzz Posted January 22, 2009 Share Posted January 22, 2009 We know that the difference in ID of the Z31 and S30 front hub seal is about .070". Cutting the outer dust lip off the Z31 seal will ease installation onto the spindle. While this arrangement works it also places excess pressure against the spindle surface. Add grease and road grit and you now have grinding paste. Over time, abeit maybe a long time, you will wear a groove into the spindle surface. I have considered machining the Z31 hub to remove the original hub lip that holds the seal, machine further out and deeper and press fit a new machined ring that would allow for the S30 seal to be used. Am I just being anal here or I'm I onto something worthwhile? Quote Link to comment Share on other sites More sharing options...
Sparky Posted January 22, 2009 Share Posted January 22, 2009 I've been collecting parts for this conversion for some time now and this has been a concern in the back of my head since the beginning. I'm at the point now where I was simply going to run it without a proper seal and be vigilant when it comes to checking and cleaning the front hubs (afterall, regular inspections on cars like these should be the norm) (not only that but do we really drive our cars enough miles or in enough conditions to cause any considerable damage?... doubtful) With that said though, should you decided to make a few of these adapter rings, I would be up for purchasing a few. Quote Link to comment Share on other sites More sharing options...
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