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Old 03-22-2010, 08:37 AM   #1
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New wheels require 5mm spacers

Just got a response from Eurotech that the wheels I am interested in will require 5mm spacers. Will I need to change out my lug bolts to accomodate these spacers as well or will my stock lug bolts work?

http://i240.photobucket.com/albums/f...r/carlit-1.jpg 2003 Boxster S
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Old 03-22-2010, 11:35 AM   #2
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I'm pretty sure you will need longer bolts, but don't use spacers myself, so maybe someone else here who uses them can chime in.
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Old 03-22-2010, 12:11 PM   #3
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It may depend on the wheels too. Some wheel designs have thicker bosses which the bolt must pass through - effectively shortening the bolt protrusion and threads which will be able to engage the threaded hub.

So you can't really just assume that you will have 5mm less thread engagement from your stock wheels. You probably need to wait until your wheels arrive and see how much thread protrusion you have with those wheels with 5mm spacers.

I believe that 1.5 times the bolt diameter is a safe number for proper thread engagement, but I'm not entirely sure.
'04 Boxster S
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Old 03-22-2010, 12:14 PM   #4
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Here is a link that will explain it:

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