2005 Ski-Doo Racing Handbook, Page 296Get this manual
SECTION 06DRIVE SYSTEM
FORMULASTD
PART NUMBER 860 425 900 860 425 800 860 425 600 860 425 500 860 425 400 ANGLE 44-40 44-37 42-37 40-44 40-37
FORMULA RERVSA
PART NUMBER TYPE ANGLE
HPV 27VSA
PART NUMBER TYPE ANGLE