06' Cat 400 4x4 auto
Mar 3, 2011 | 04:13 PM
#1
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Trailblazer
Joined: Mar 2011
Posts: 37
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From: Willcox, Az.
06' Cat 400 4x4 auto
After riding my 06 Cat for even 15-20 min. it is venting gear lube from the rear diff. Anybody run into this before? Thinking about extending the vent hose somewhere else.
Mar 14, 2011 | 03:15 PM
#2
ATV Reporter
Joined: Nov 2010
Posts: 286
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Hey BorderCat, the ATVC editors have picked your question:
Actually we understand this is a very common issue stemming from the factory fluid’s tendency to rapidly expand when heated (which then weeps through the bellows).
Extending the vent hose is a logical solution if you find the venting fluid is making contact with your rear brake. A more permanent solution we’ve discovered is to replace the factory differential fluid with Mobil 1 synthetic 75w-140 gear lube. Making the switch resolved our weeping issues entirely.
Thanks for asking your question! To see other questions that the editors answered, click here!
Originally Posted by ATV Connection
Actually we understand this is a very common issue stemming from the factory fluid’s tendency to rapidly expand when heated (which then weeps through the bellows).
Extending the vent hose is a logical solution if you find the venting fluid is making contact with your rear brake. A more permanent solution we’ve discovered is to replace the factory differential fluid with Mobil 1 synthetic 75w-140 gear lube. Making the switch resolved our weeping issues entirely.
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