JT Stealth 8.2” wheel kits are a permanent solution to the sub par oem parts. JT stealth kits come with 4 Avid heavy duty wheels with larger quality bearings. This will stop the drag and wear of the hyfax in front of rear wheels. This kit will replace all of the plastic oem parts with 5 aluminum spacers. The stock plastic spacers crush when the axle is tightened causing the axle to never be actually clamped fully tight letting the axle to come forward potentially breaking the adjuster bolt tabs that hold them in the rails!! Having all aluminum spacer clamps all parts together tight so nothing is able to move. The stock axle is a 13” solid 25mm aluminum shaft that is to be reused on the sleds that come with 3 wheels. JT wheel kits should run 10,000 miles before recommend bearing change. We are the number 1 In the wheel kit market by far with thousands of satisfied customers.