TRAXXAS TRX4 Aluminum Rear Gear Box 15pc Set TRX4013B by GPM  [TRX4013B]

TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B
Price:
CAD$115.09
Brand:
GPM
Model:
TRX4013B
GTIN:
4894538295825
Condition:
Brand New
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alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Gear Box (Without Cover) -15 Pcs set - GPM TRX4013B"

Aluminum rear gearbox upgrade for TRX4

This RC-scale aluminum rear gear box assembly is made for the TRAXXAS TRX4 Trail Crawler platform, supplied as a 15 pcs set and sold without the cover. Machined from 6061-T6 aluminum, the upgrade reduces flex and extends service life at the rear differential and suspension mounting points.

The kit is designed to stabilise rear differential components, secure the rear axle mount for suspension links, and reinforce the rear C-hub mounting points under technical trail loads. Supplied fasteners are sized for direct fit to the TRX4 rear assembly so the aluminium parts locate accurately and keep alignment during low-speed crawling.

Specifications

  • Item: Aluminum Rear Gear Box (Without Cover) - 15 pcs set
  • Material: Aluminum 6061-T6
  • Model Number: TRX4013B
  • Compatibility: TRAXXAS TRX4 Trail Crawler

For TRX4 owners wanting a firmer, more consistent rear end, this aluminium rear gear box set replaces fragile plastic mounting points and includes the screws needed for a direct swap, helping preserve alignment during demanding trail sections.

Will this fit different TRX4 body or axle variants?

The parts are made for the TRAXXAS TRX4 Trail Crawler rear assembly; check your axle and link layout against the fit points before ordering.

How difficult is the installation for a hobbyist?

Basic disassembly of the rear axle and removal of the plastic mounts is required; a small set of metric hex drivers and patience are all you need for a typical hobbyist installation.

What hardware comes with the 15 piece kit?

The listing includes the aluminium components and the specified stainless screws sized for the TRX4 rear assembly to allow direct mounting without sourcing extra bolts.

Does this set include the gearbox cover?

No. This product is supplied without the gear box cover, as shown in the item description.

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