I just thought I'd share with you all the way I decided to fix my leaky closed knuckle front dana 44. I grew tired of wondering if all my gear oil had leaked out or not, and after unsuccessfully trying to purchase new seals and wipers I decided to go a different route. A few people have told me that they just pack theirs with axle grease, but I didn't want to have to disassemble it all every time I wanted to grease it. So I went to the auto parts store and picked up some universal grease fittings. Then I picked up a 1/4-28 tap and drill set and went to work on the sight plugs. Here is what I came up with:
After reinstalling the plugs I pulled the drain bolt out (one of the lower ball joint bolts) to release air and drain what was left in there, which wasn't much, and pumped a full tube of grease into each side. I never did get any to come out of the drain hole, so I may go have the local lube joint pump it in until it comes out the drain. Anyways, just thought I'd share my idea with you all. Now I can stop worrying about it!
