Serpent 804391 Natrix 748 V2 Rear Diff Upgrade  [SER804391]

High retention rear differential for Serpent Natrix 748 V2

The Serpent 804391 rear differential set is a targeted upgrade for Natrix 748 V2 cars, developed to stabilise drivetrain response. The reworked housing keeps a larger oil volume to preserve consistent damping during extended running, and a small bleeder port allows excess oil to be expelled before you secure it with a grub screw for maintenance access.

Internal improvements and pulley requirements

The kit includes gears with a deeper tooth form to ensure precise mesh and superlight hardened spring steel axles for strength and low inertia. Each diff case has a moulded spring steel bushing to add support. To fit the V2 diff correctly you will need the new larger pulleys and their side belt; the greater diameter helps reduce belt bending and can sharpen throttle response. Choose between standard pulleys or white low friction versions depending on your setup preference.

Swap-in replacement for earlier models

The gearset is compatible with the 748 V1 gear differentials, allowing the 804391 to be used as a drop-in replacement in many older configurations when refreshing worn differentials.