Serpent 804391 Rear Differential Upgrade Kit for Natrix 748 V2  [SER804391]

Rear differential upgrade for Serpent Natrix 748 V2

The Serpent 804391 rear differential set is engineered as a direct performance upgrade for the Natrix 748 V2 line, built to improve drivetrain consistency. The updated case is shaped to hold more oil for steadier behaviour over long sessions, and it features a small bleeder hole to let excess oil escape after assembly that you can seal with a grub screw for routine service.

Design improvements and parts compatibility

Internally the diff uses gears with a deeper tooth profile for better mesh, and lightweight yet hardened spring steel axles for durability without unnecessary weight. The diff cases include a molded spring steel bushing to add lateral stability. To install this V2 differential you will need the larger pulleys and a matching side belt; these larger diameters reduce belt bending and can sharpen acceleration. Pulleys are offered in regular and white low friction finishes so you can choose based on your setup.

Replacement and cross fit notes

The gear geometry in this set was designed to also fit the earlier 748 V1 gear differentials, so the 804391 can serve as a robust replacement when updating older cars or maintaining a race fleet.