1989 Ski-Doo Repair Manual, Page 357Get this manual
Section 03 TRANSMISSION Sub-section 09 (DRIVE CHAIN)
LENGTHENING 12 LINK
318 in DOUliLE 112 in SINGLE 318 in TRIPLE
+oAConnecting link BLink pin CCranked link DCotter pin Outer link Circlip
AOOO 003 023
LENGTHENING LINK