I realy was not planning to, since it is not leaking. But now that you've mentioned there's an easy way sure why not. It is torn down already, I suppose it will prevent me from having to do it later, when it becomes a problem.
Well if you are that far into it, you may as well i guess.
The only hard part is to crack the 1 1/8” bolts inside the chain case that hold the drive sprockets. I used a spanner on the inside and a piece of angle iron with a length of pipe welded to it bolted to the axle studs. Twist to crack the bolts and your set.
Now to remove the axles, number them so you know where they go back! you can remove the axles/sprockets and chains when on the ground by removing the bolt on the sprocket and using a hydraulic jack between the back of the axle hub and the chain case to pop the axle and seal out. The trick for re-installing is to hang the chain case up! let the chains and sprockets hang down when you push the axle back in. Trying to hold a length of chain PLUS a sprocket up in the air and aligning it is really really hard. Make sure you line the sprocket up WITH the chain attached as you push the axle back in. You will never get the chain or sprocket on the shaft when the axle seal is in place, trust me i tried!!!
Doing it this way was a 1 person job, very simple.
Do the same on the other end by hanging it up the other way and you are set! If you need more specific info just let me know.