GPM Racing 7075-T6 Alloy Rear Upper Bulkhead for Traxxas 1/6 Funco Pro Scale 2WD Sand Car 8S-109076-4 (TPS013)

Precision rear upper bulkhead for FUNCO

The TPS013 rear upper bulkhead is a precision aluminium replacement crafted for the TRAXXAS FUNCO PRO SCALE 2WD SAND CAR platform. Machined from 7075-T6 alloy to tight tolerances, it replaces factory part #10951 and raises the rigidity of the rear mounting point to maintain accurate differential alignment under torsional loads.

Installed at the rear upper bulkhead location, this CNC-finished component secures the differential assembly and reduces lateral and rotational movement that can lead to gear tooth wear during heavy sand operation. Fasteners are supplied pre-assembled to simplify installation and ensure correct clamping force.

Installation notes: the package includes the screws needed for fitment and it is recommended to use medium-strength screw glue on the threads to prevent loosening during operation. Check mesh alignment after mounting and recheck tightness after the first run.

Packing includes

• Rear Upper Bulkhead – 1pcs
• Grade 12.9 Black Round Head Screws 4×10 – 1pcs
• Grade 12.9 Black Round Head Screws 4×12 – 2pcs
• Grade 12.9 Black Round Head Screws 4×14 – 2pcs

Original Name / Part No:

10921

Compatible Models

• TRAXXAS 1/6 FUNCO PRO SCALE 2WD SAND CAR 8S-109076-4

For serious builders seeking a machined aluminium rear mounting component to enhance differential stability and reduce gear damage risk, the TPS013 offers precision fitment as a direct replacement for the OEM rear upper bulkhead.

What tolerances are typical for this CNC part?

The part is precision machined to industry-standard RC aluminium tolerances to ensure repeatable fitment and correct alignment with the factory mounting points.

How does 7075-T6 compare to other alloys used in RC parts?

7075-T6 offers a higher strength-to-weight ratio and improved fatigue resistance versus common softer alloys, making it well suited for load-bearing mounts in sand and scale applications.

Are assembly fasteners torque critical?

Proper torque and the use of a medium-strength threadlocker are recommended to maintain clamp load and avoid micro-movement that can accelerate gear wear; verify mesh and fastener torque after initial runs. Write Product Review Please sign in your account before you can write any review. Sign In Close

Made to order: GPM Racing parts are shipped to us from GPM’s factory, so please allow around 14 days for dispatch.