Poor Little Cone Style

I run an Auburn Pro Series, its design is just like an original mopar cone, except the cones are way bigger providing more grip. Yes it works great but if the dana power locks were available back then like they are now I would have gone with on of those because they are easily rebuild able. But make no mistake, the Auburn Pro Series is tough it has been taking a beating by my stroker motor and it still works great. But I suck the gear oil out and refill with new at least once a year. And it always comes out with a silver tint. Cone units are metal to metal every time you go around a corner so I feel frequent fluid changes are key with cone units.