If you are only adding a little grease each time, I can't even guess how many years it will take to get grease to the outer bearing. From the factory, they pack grease in the bearings, but using the E-Z-Lube system, you have to pump close to an entire tube of grease through the inner bearing and out the outer bearing to grease the bearings, all the while rotating the wheel as the grease is pumped slowly by hand. After all that greasing, you still don't know how your brakes look. You will get other opinions, pro and con, but I pull the drums and inspect the brakes, pack the bearings and install with new seals annually.
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Bob & Becky
2012 3402 Montana
2012 Chevy 2500HD D/A CC
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