Why wouldn't Dana Corp. put a drain plug in the TTB axle? Would it have been that much more $$$? Or was this one of Fords better ideas. I just thought it was a Pain In The A$$ to get a suction tool to get the diff. fluid out. Prolly cuz all I had was a tiny siringe type thingy about as big around as a coffee straw. Oh well, lesson learned.:banghead