Concerning Transmission and Transfer Case Rebuilds

[Corey Myronuk]

As I'm still waiting for my manuals to come in the mail..what is the specified grade of lube for the transmission transfer and final drives.I was under the truck the other day (cab 13 F60L) and pulled all the plug to make sure any water hadnt found its way in..my transmission is out in my shop ATM and appears to have the same lube as the diffs.The oil in the diffs looked like molasses.. while ordering up some inner axle seals from Macs i noticed a product called 600W oil.looked very much like whats in my truck.Is this the right stuff?

Thanks