H20 Traveler replacement.
You must remove one of the track-end stops. The boat came with a "loader" typically a short plastic section of track (blue). The old car is slid onto the loader and then the traveler bearing balls are collected. Place the new car on the loader and them "load" the bearing balls into the loader and new car. Line up the loader / car with the track and slide onto the track. Fasten the end cap again.
Director of Parts and Accessory Sales
Warranty and Technical Support
Hobie Cat USA