The all balls jack shaft kit for timbersled st 90 ripper 2017-2018 is part of the latest collection from all balls.Features: jack shaft kits contain chain case input bearing, outer support bearing, seals, o-rings and miscellaneous components as neededfits timbersled '17 ripper, '18 st 90 ripper, '19 st 93 ripper models.Specifications: features: fits timbersled ripper models product name: bearing research value: finalized riding style: snow type: jack shaft units: kit to fit: timbersled st 90 ripper 2017 short track all models timbersled st 90 ripper 2018 short track all models timbersled st 93 ripper 2019 short track all models manufacturer part number: 14-1079view all all balls. View all parts and spares.