The Cdn Army had those two zerk fittings removed as they did not properly grease the rear wheel bearings. As well, if you over-do pumping grease into there, it has to go somewhere. I suppose putting grease into there is better than nothing, but ideally you remove the axles, clean and inspect the bearings, I go with new inner and outer axle seals (since they are fairly cheap) and set the axle preload/endplay at the same time. Then you can drive with confidence. But it is a big job for a novice.
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