1978 Ski-Doo Shop Manual, Page 345Get this manual
SECTION 08 SUB-SECTION 02-02
VEHICLE MODELDRIVE BELT NUMBER
ELAN and SPIRIT OLYMPIQUE NUVIK CITATION EVEREST EVEREST FUTURA EVEREST FUTURA T'NT T'NT RV and SONIC BLIZZARD ALPINE ELITE 340 FA 444 LC 250 WIDTH
5700411
30 mm (1 316")
4142327
33 mm (1 516")