Dana 44 Closed Knuckle Axle Shaft U-Joint Part Number

[Short 3/4]

So sounds like you’ve decided to keep the closed knuckle for now? I’m guessing you’ll be very happy with it when you’re done, and if not you can always throw in that newer one later

As far as the seals on the U joints you would probably be fine either way, but yea I think leaving them on is the best way to go. That same joint will last many thousands of miles in the environmental hell of an open knuckle, so enclosed in a nice clean closed knuckle it will last many times longer. Just like every other mechanical system on our trucks, the only thing that will kill a part is too much horsepower or not enough clean lubrication.

Don’t think that you don’t have to worry about keeping the lube topped up in the knuckle though. Remember that’s the only thing lubricating the upper and lower bearings. I also love the Corn Head grease. Never could keep 90W in those things.

Tom