Serpent 804391 Performance Rear Diff for Natrix 748 V2  [SER804391]

Performance rear differential for Serpent Natrix 748 V2

The Serpent 804391 rear differential set upgrades the Natrix 748 V2 with a focus on consistent drive feel. The case has been revised to hold additional oil, helping the diff maintain stable characteristics during longer runs. A small bleeder hole is included so excess oil can escape during build, and this can be closed off later with a grub screw for tidy servicing.

Engineering details and pulley note

Gears in this set use a deeper profile for improved engagement, paired with very light but hardened spring steel axles for strength without bulk. The diff cases feature an integrated spring steel bushing to enhance stability. Installation of this V2 diff requires the updated larger pulleys and a matching side belt; the increased pulley diameter reduces belt bending and can improve acceleration. Pulleys are available in standard and a white low friction option to suit different track demands.

Fitment across versions

The diff gear set was designed to be cross compatible and can be used to replace components in the 748 V1 gear differentials, making the 804391 a practical upgrade for older cars in need of refreshed internals.