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This is the start of converting a Trail Twister with double roller chain over to a silent drive chain. I could not find a bearing with a 62 mm O.D. and a 1 inch I.D. so I made some bushings to adapt the 62 x 30 Twister bearing to an Arctic drive shaft. I shortened and turned down the Arctic shaft. Now I just have to press on the AC drivers and install. I found a top chain case bearing to fit an Arctic cross shaft and the Twister chain case so I'll just modify the shaft and brake disc assembl