I am experiencing a problem that I cannot solve and no one Ive talked to knows the answer. In my rear axle, I have replaced all gears including spider and side gears. I replaced the front seal and yoke. My problem is that the seal keeps blowing out. I have made sure the vent tube is not clogged. We even put a different drive shaft on. Why does the pinion seal keep going out? Would a SYE stop it? And if I get a SYE then would I also need a different drive shaft?