[mrjeep81]

I also have done this bolt trick in the past, and drilled down through the head, then cross drilled through the bolt shaft and tapped a grease fitting centered in the hex head. This allowed for very easy lubrication. I believe there should be a factory grease fitting on the back of the axle, hard to see up in the cast webbing, to grease the pivot pin. It's called out on this pic I copied from the web, I don't have any actual pics of one.