TRAXXAS TRX4 Centre Gear Box TRX4038 upgrade by GPM  [TRX4038]

Aluminium centre gear box for durable crawling

This aluminium centre gear box is an aftermarket replacement tailored for the TRAXXAS TRX4 Trail Crawler platform, built to hold and stabilise the centre transmission gears for improved steering response and more constant crawling performance. The design focuses on locking gear alignment and reducing play in the driveline while preserving original gear ratios.

Intended for hobbyist maintenance and setup, the component serves as a tougher mounting point for the centre gears and helps keep gear mesh steady under load, making repeatable adjustments easier when changing suspension or motor positioning. When replacing the original plastic carrier, verify gear mesh and clearance during installation to prevent premature wear.

Included hardware listed with the product from the manufacturer: Stainless Steel Round Head Screw 3x10 - 1pc, Stainless Steel Round Head Screw 3x8 - 3pcs, Stainless Steel Cap Head Screw 2.5x6 - 8pcs, Stainless Steel Flat Head Screw 3x8 - 2pcs. Use those screws to secure the unit and retain any bearings or spacers from your original assembly where suitable.

For a firmer centre transmission mount on TRX4 trucks, this aluminium centre gear box offers a direct upgrade; ensure correct mesh at fitment and service bearings where needed for best performance.