differential fluid swap
05-06-2016, 02:59 PM
Thread Starter
Join Date: Feb 2008
Location: Indianapolis IN
Posts: 41
differential fluid swap
I know its been asked a lot, but i cant get a straight answer. Do I need friction mod with amsoil 75/140?
05-06-2016, 05:07 PM
3rd Gear Member
Join Date: Aug 2015
Location: SE Michigan
Posts: 939
Only if your vehicle has Traction-Lok. It is not needed in an open differential.
05-06-2016, 05:59 PM
Thread Starter
Join Date: Feb 2008
Location: Indianapolis IN
Posts: 41
Ok. Stupid question - how do I tell if I have traction lock or open?
05-06-2016, 06:22 PM
3rd Gear Member
Join Date: Aug 2015
Location: SE Michigan
Posts: 939
I see now that your profile says 2013 GT, in which case you should have LSD/Trac-Lok from the factory.
05-06-2016, 07:04 PM
Thread Starter
Join Date: Feb 2008
Location: Indianapolis IN
Posts: 41
Right on. Thanks for the help
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