2005 Ski-Doo Racing Handbook, Page 276Get this manual
SECTION 06DRIVE SYSTEM
DRIVE PULLEY TRA III
All REV Series Models NOTE: This is lubrication free drive pulleyAlways refer to appropriate parts catalog for replacement partMost parts of TRA III are not interchangeable with those of the TRA6 27 Nm (20 lbfft) Loctite 271 Electric start models only 12 11 12 15