coldradio1 Posted September 27, 2009 Share Posted September 27, 2009 What type of rear differential does the GT have? I wouldn't think its a clutch type, but I just want to sure. When I do the rear diff fluid change, I need to know if I need to use friction additives. Link to comment Share on other sites More sharing options...
FPerron Posted September 27, 2009 Share Posted September 27, 2009 Viscous. Need only 75-90 gear oil. Link to comment Share on other sites More sharing options...
fishbone Posted September 28, 2009 Share Posted September 28, 2009 +1, no friction modifiers needed, just straight 75w90 Link to comment Share on other sites More sharing options...
Underdog Posted September 28, 2009 Share Posted September 28, 2009 And in the case where you are using Redline fluids... the 75W-90NS is the type without friction modifiers. The Crimson Dynamo Link to comment Share on other sites More sharing options...
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