1979 Ski-Doo Supplementary Shop Manual, Page 12Get this manual
SECTION 01 SUB- SECTION 04 (DRIVE AXLE)
DRIVE SPROCKET REPLACEMENT
Drive sp rockets are of press fit designWhen reassemblingmake sure to ali gn the embossments of the sprockets GRAND PRIX SPECIAL
The ce nter to center distance of the drive sprockets must be as specifiedRefer to illu strat ion for proper in sta ll ation