TRAXXAS TRX4 Precision Aluminium Centre Gear Box TRX4038 by GPM  [TRX4038]

TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038
Price:
USD$83.90
Brand:
GPM
Model:
TRX4038
GTIN:
4894538293067
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alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Center Gear Box 1 set - GPM TRX4038"

Precision aluminium centre carrier

This CNC style aluminium centre gear box is an aftermarket replacement for the TRAXXAS TRX4 Trail Crawler platform engineered to provide a stiffer, more accurately located mounting surface for the centre transmission gears. The component is intended to reduce driveline deflection and maintain consistent gear mesh under load while leaving gear ratios unchanged.

Suited to experienced hobbyists and tuners, the unit offers increased rigidity for repeatable setup and easier alignment checks when altering suspension or motor position. During installation replace or confirm bearing seating and verify gear mesh across the rotation 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 the supplied fasteners to secure the gearbox and retain or refresh bearings and spacers as required for optimal performance.

Specifications

  • Item Aluminum center gear box 1 set
  • Material Aluminum
  • Model Number TRX4038
  • Compatibility TRAXXAS TRX4 TRAIL CRAWLER

As a precision aluminium replacement carrier, this unit improves drivetrain stiffness and setup repeatability; ensure correct mesh and bearing fitment during assembly for best results.

This item is compatible with

  • TRAXXAS TRX4 Defender Trail Crawler

What is the primary benefit of this aluminium carrier?

The aluminium carrier reduces flex in the centre transmission mount, improving gear alignment stability and offering more predictable drivetrain behaviour under load.

Should bearings be reused or replaced?

Inspect bearings for play and replace worn units. Proper bearing seating is critical to maintain gear mesh and avoid accelerated wear.

Any special torque or fitting procedure?

Tighten mounting screws progressively while rotating the drivetrain to confirm free operation, and set a minimal backlash to ensure quiet, efficient engagement.

Will this change gear ratios?

No. The carrier is structural only and does not alter gear spacing to change ratios; check pinion engagement after fitting to confirm correct mesh.