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      02-03-2013, 12:30 AM   #17
Weasel410
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Drives: 2011 135i
Join Date: Mar 2012
Location: SoCal

iTrader: (2)

Dack,
By any chance do you still have the donut gasket? If so, could you please measure the ID, OD, and height? Thanks!

For future reference, the axel back OEM tubing is about 2.75'' diameter.