[BB_TX]

It is not a matter of too much grease. The potential problem is pumping too fast and causing too much pressure on the rear seal. Dexter recommends slowly pumping in grease with the wheel turning until you see new grease coming out the front. And believe me it takes a lot of grease. About half a tube per wheel. If you look at a cutaway view on the Dexter web site you can see the grease goes thru a port to the rear of the hub, then passes thru the inner bearing, then fills the void in the center of the hub, then passes out thru the outer bearing. Pump slowly with the wheel continuously turning and the system works fine.

I use Mystik JT6 Hi Temp grease which is a dark red and one of the ones recommended by Dexter. It is pretty easy to see when the new red grease starts coming out the front to show that it has displaced most all the old darker colored grease.

Putting only a couple pumps in does nothing for the outer bearing.