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  • The original 930 differential side cover is made of cast aluminum, not to mention it’s pretty thin.  Under load there can be a tremendous force applied to this cover, and it can break, sometimes resulting in a damaged ring and pinion-or worse.  Upgrading to a billet side plate will add significant strength and increased reliability to the differential section.
    Our design features include:
  • A ring gear thrust bolt to reduce ring gear deflection under load
  • Ports that can be used for an oil cooling system
  • Cross drilled oil passageways for the diff bearing.  Works both upright and inverted!

CMS 930 Billet Side Cover

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