The 3Racing SAK-D6808B/BU machined aluminum rear bulkhead cover is an aftermarket replacement tailored for the Auper D6 chassis to deliver a firmer rear mounting platform. Built from solid aluminum, the cover substitutes the stock plate and links suspension pickup points and gearbox mounts into a more robust structure, which helps limit rear-end deflection during cornering and high-load sections.
Fitting the cover is intended to be non-invasive: remove the factory rear plate, line up the aluminum cover with the existing screw points, and secure it using the chassis hardware. No special modifications are needed when using the original mounting locations and common rear suspension arrangements on the Auper D6.
Used as a tuning part, this bulkhead cover affects chassis stiffness instead of suspension geometry. The increased rigidity at the rear can lead to steadier handling under load and makes iterative shock and differential adjustments more predictable during setup sessions.
This replacement plate is aimed at modelers who want metal hardware to stabilise rear chassis behavior while developing setups for the Auper D6.
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