What is everybody running in their transfer cases these days? I'm gonna switch my front and rear diff to amsoil but not sure what's best for transfer case. Any suggestions or tips are appreciated. Thanks. Oh yeah I've got an 05 lariat.

 

Guy that dropped my transmission just topped it off with some Oreillys Auto Transmission Fluid that was Mercon V rated/compatable.

 

The same here when I had my Tran. fluid changed last week along with changing the filter.

 

The transfer case calls for straight mecron, but since it is no longer carried by ford, they spec a new transfer case fluid.

 

Your FLAPS should have a Merc V equivalent. Even Wal Mart has a Merc V