Well I finally installed my 3/4T axle & got things a running. Well I took it out for a test drive, got home & found out the front pinion seal leaking like a sive. I installed a new pinion seal, but upon tightening the nut up I noticed I have around a inch of play! (How tight should the pinion nut be, I don't own a beam type torque wrench, just a digital/clicker type) Is this normal?? Plus the grease in the front axle is now brown. This axle sat for a while, & I thought I cleaned the inside good. Should I drain the grease and try it again or ?????