Ended up having my G50 serviced/shortened by CMS. Here is the info I used to initially tear it down:
Here are the references I used:
Wally's G50 Post on Pelican Parts
Post on Impact Bumpers
Removed the cover:
Air impact to remove the 40mm and 19mm?:
Removed gear and slider:
Used a Proto Puller after grinding off most of the arm material to fit under the gears:
See some worn/flat teeth on the thin black ring attached to the gear, but they don't appear to be broken?
Pulled the case off:
Main Gear assembly:
Removed the m8 nuts holding the assembly to the case:
Removed Diff:
Working on a long socket to remove the input shaft from the gear assembly: