Old May 25, 2011 | 11:19 AM
  #8  
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jayRS
PassionFord Post Whore!!
 
Joined: Jul 2004
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From: isle of wight (K.O.P 2006 mother fucker!)
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there good mate, ive not had to touch mine, but unlike a -31 sealed unit, you can strip them down and repalace the spring and diaphram.
or if you want a stronger spring , order one and fit it,
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