Quote Originally Posted by JUSTINHALL View Post
The biggest mistake people make with bearing buddies is pumping it completely full of grease. Just like the directions said above "pump grease until pushes out 1/8". If you pump it full of grease it blows the inner seal out as so many talks about. Both too much pressure to start with then you get it hot and grease expands its got to go somewhere, so out the inner seal it goes. I too thought you pumped it full until I read it last time I was putting them on. Every person I asked how much grease you put in every single person was wrong, they said pump it full then argued when I said manufacture says otherwise. I will also add 99% of friends who I asked are mechanics of some kind not necessarily trailer mechanics but have all put on many sets of trailer bearings.
Another confession:

For a long time I pumped them full. Gotta do a good job filing them right. Slung grease all over the inside side of the wheel for years. Never had a problem though. I do it per the instructions now.

Tip: When you are messing with your bearings, take a quick look at the weld that joins the spindle to the axel. Especially if it is an older trailer. They can crack and break. Maybe not that common but it happened to me. Fortunately it gave way when I was pushing the boat around on the driveway. So I get home and when rolling the boat by hand it breaks. I felt lucky!