[PeteVS]

I didn't read ALL the posts but it seems that the issue is the inclination of the torque tube. If it's higher in the rear, some oil will drain forward. If it's higher in the front (as Henry designed it) the oil will flow to the rear. Just putting a level on the torque tube will show you how much of a problem you have. Reverse pitch on the torque tube is caused by 1) over size rear tires, 2) smaller front tires, 3) front suspension modifications including dropped axle and reversed spring eyes.