Witnessed it yesterday. Pretty cool. My tech used a REVERSED spark plug wrench in the axle hex. Said he didn't need my tool I bought. He said it's a great secret instead of buying the Suzuki tool bit. The rear drive system is pretty trick. Kinda wish they could have had a beefed up single sided arm.
Set the caliper as far out of the way as possible to avoid scarring the rim. No need to remove pipe. Torque from the Hex side. 72 ft lbs if I recall correctly.