2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 453Get this manual
FRONT DRIVING MECHANISM ASSEMBLY DRIVE SHAFT
INBOARD JOINT
SHAFT BOOT BAND
OUTBOARD BOOT
OUTBOARDJOI NT
INBOARD BOOT BEARING CAGE
OUTBOARD BOOTBAND
Each boot has an identification mark; "BJ71" for theBJ71 outboard and "UJ68" for inboardUJ68