int77345
Active member
I ordered swepco 210 tonight from the web sight, I am going to put this oil in my diffs, Dana 20, and 4 speed trans, I think it is a wide ratio t-19. Do I need to really clean the old oil out or can I drain the t case and transmission and re fill with the swepco? As far as I can tell from reading on the form the swepco oil is compatible with the left over vavoline gear oil…