The Serpent SER903731 Gearbox Drive Flange XLI Gen2 is a service part intended to maintain and tune the Viper 989 GP drivetrain. Built to match the Viper layout, it supports consistent torque transfer and withstands regular track use.
This drive flange installs directly into the Viper 989 GP gearbox to provide a tight connection for dependable power flow. A correct fit reduces drivetrain play and helps preserve predictable handling lap after lap.
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