GPM Racing 7075-T6 Alloy Transmission Kit for Axial 1/30 SCX30 Ford Bronco 4x4 RTR Brushed Rock Crawler (SCX30/38)

7075-T6 alloy transmission upgrade

This aftermarket 7075-T6 CNC-machined aluminium transmission kit is produced for AXIAL SCX30 platforms, intended for 1/30 scale brushed rock crawler applications. It focuses on replacing the gearbox housing and mounting surfaces to provide a stiffer alloy option that helps keep gear mesh consistent during low-speed crawling.

Technical summary: the assembly supports motor tooth-slot sliding to fine-tune pinion engagement and is supplied as a replacement for factory part AXI-3311. Internal gears and bearings are not included and must be provided and installed by the builder; use suitable grease on gear teeth during assembly for reliable operation.

Small hardware comes pre-packed in the carton; final assembly requires standard hobby tools and sensible torque control. For secure service, apply a medium-strength threadlocker to metal-to-metal screws where vibration is expected.

Packing includes

• Transmission KIT – 1pcs
• Round Head Screws 1×6 – 8pcs
• Round Head Screws 1×8 – 4pcs
• Round Head Screws 1.4×8 – 4pcs
• Round Head Screws 1×4 – 4pcs
• Flat Head Screws 2×5 – 2pcs

Original Name / Part No:

AXI-3311

Compatible Models

• AXIAL 1/30 SCX30 Ford Bronco 4X4 RTR Brushed Rock Crawler-AXI-2048
• AXIAL 1/30 SCX30 Jeep Wrangler JLU 4X4 RTR Brushed Rock Crawler-AXI-2261
• AXIAL 1/30 SCX30 Chevrolet K10 4X4 RTR Brushed Rock Crawler-AXI-2260

For AXIAL SCX30 owners seeking a machined 7075-T6 gearbox shell, this GPM transmission kit enhances case rigidity and supports repeatable pinion engagement; internal gears and bearings must be sourced separately and proper greasing and threadlocker use is recommended during installation.

What SCX30 variants are covered by this kit?

Compatibility lists the common AXI-2048, AXI-2261 and AXI-2260 SCX30 versions; confirm specific chassis mounting features before completing the swap.

Do I receive gears and bearings with this kit?

No. The package includes the machined housing and fasteners only. Internal gears and bearings must be obtained and installed by the user.

Any special assembly recommendations?

Ensure all mating surfaces are clean, use appropriate lubricant on gears and bearings, and secure metal fasteners with medium-strength threadlocker to reduce the chance of loosening under vibration.

Is this intended to replace part AXI-3311?

Yes, the unit is offered as a replacement for factory part AXI-3311 and is manufactured from CNC 7075-T6 alloy for improved rigidity and alignment control. 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.