That is the only way to service the trailer bearings and inspect the brakes, this EZ-Lube nonsense is just a sales gimmick for those that like to ignore proper maintenance. In PA, and I suppose some other states. the brakes need to be inspected every year. How would you like to pull the hub with that tube of grease making a mess?
The axle manufacturers have been producing a incorrect design for many years, look at their drawing and you will see virtually no shoulder for the rear bearing cup to contact. I did actual measurements and found that there are some with no shoulder when considering tolerances. Now consider the grease being pumped in right where that poor contact is and filling the seal with grease and then pushing thru to the brakes. In addition, how long do you thing the proper bearing clearance will be in tolerance with this faulty design? Just one more reason to do it right and forget the grease zerk B.S.
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