My outer seals on the swivels started to leak a few months ago, one sides oil was grey. I assume the inner seal went and contaminated the wheel bearing. I put a stop leak/seal conditioner in with new heavier oil(85-120) to band-aid, and its worked really well. I am conserned about my wheel bearings and want to repack at least the one side. I wanted to know if there was a good resource with detailed pictures and tool list for this. Can I replace the inner seal easily? Would I need an air impact for this? Im too busy right now for a full repair any detailed help would be great. I dont want to screw it up anymore than it already is.