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Not that tough to do, drop the exhaust remove the diff. to the bench and remove the batwing. Make sure you have a GOOD quality pair of 90 degree, .090 tip, snap ring pliers to remove the retaining rings, they can be tough.
With the retaining rings off, the stub axle shafts pull right out, the seals can be pried out with a long screwdriver, just be careful not to damage the stub axle bearings. The new seals can be installed using a large socket as a driver. Reinstall stub axles, snap rings and reassemble. I can do it in 3 or 4 hours, but it will take longer without the right equipment.