2005 Kawasaki KAF620 Mule 3010 Trans 4x4 Service Manual, Page 257Get this manual
12-36 FINAL DRIVE Drive Shaft and Axles
Install: Boot Band [A] Small
Inboard Boot [B] Steel Ball Holder [C] Steel Ball Base [D]
Install the steel ball holder [A] as shownFace the chamfered side [B] of the steel ball base [C] to the boot[D] Outboard Shaft