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GPM Racing

GPM 1/18 Aluminium Gearbox Case - Red

  • 1/18

Part no. UTB038-R

1 in stockWrite a review

$47.19

or 4 fortnightly payments of $11.80 with afterpay

Upgrade The Axial 1/18 UTB18 Capra With This GPM 7075-T6 Aluminium Housing, Designed To Dissipate Heat Faster While Keeping Internal Components Stable

  • Available in A Wide Range Of Anodised Colours
  • Precision CNC Machining Minimises Internal Gear Mesh Gaps
  • Stabilises Transmission For Smoother Drivetrain Rotation
  • 3D Streamline Moulding Adds Metal Styling and Strength
  • Direct Factory Replacement Upgrades Stock Composite Housing
Select Option: Red

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  • 1 in stock · Order in 12h 39m, dispatched today

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  • 60-day returns · 12,000+ 5-star reviews · 03 5292 1101 ·

Overview

Maintain efficient power transfer and lower internal gearbox operating temperatures on your small-scale rock crawler with the GPM Aluminium Transmission Housing Set. Precision CNC-machined from high-strength 7075-T6 aircraft-grade aluminium, this three-piece upgrade case replaces factory composite housings to eliminate flexing under high-torque motor loads.

Designed with tight internal machining tolerances, this housing minimises gear slop to ensure smooth, quiet tooth engagement. The aluminium structure acts as a heat sink, drawing thermal energy away from transmission gears during long trail runs and steep climbs. Complete with 3D streamlined exterior contours and pre-installed hardware, this heavy-duty case restores driveline alignment and provides lasting protection on rough terrain.

Note

Screws are pre-installed.

Features

  • High Tensile 7075-T6 Aluminium Construction Dissipates Motor Heat Quickly
  • Precision CNC Machining Reduces Gear Mesh Gaps For Smooth Rotation
  • Stabilises Internal Transmission Shafts To Maintain Consistent Gear Alignment
  • 3D Streamlined Styling Provides Modern Scale Appearance
  • Direct Replacement for Axial 1/18 UTB18 Capra 4WD and 4WS Versions
  • Genuine GPM Product

In the box

  • 1x Aluminium Transmission Housing Set
  • 1x 3x10mm Fine Thread Button Head Screw

Reviews

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Questions & Answers (1)

Have a question, or an answer? Our team and other owners both reply.

  • Arthur Z4 May 2026

    Question: What scale and for which truck or car.

    DanielStaff13 Aug 2026
    Answer:
    Share what you know