Originally Posted by
MelKF2
For the past 4 month's I have been using Z Max on my diff gears and now I'm here to say try it you will like it! Soak the gears in glass jar and let it soak into the metal (note darker color) about 24 hrs. It works racer's you will feel the smoothness!
Sounds like this is worth a try. I know ZMax is used in racing car engines to average car engines to promote less resistance, heat and wear.
Thanks foe the idea