Precision CNC Rear Gearbox Housing 14 pcs TRU013 by GPM  [TRU013]

TAMIYA TRACTOR TRUCK Aluminum Rear Gear Box -14 Pc set - GPM TRU013
Price:
USD$83.90
Brand:
GPM
Model:
TRU013
GTIN:
4894538274998
Condition:
Brand New
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alt="TAMIYA TRACTOR TRUCK Aluminum Rear Gear Box -14 Pc set - GPM TRU013" title="TAMIYA TRACTOR TRUCK Aluminum Rear Gear Box -14 Pc set - GPM TRU013"
alt="TAMIYA TRACTOR TRUCK Aluminum Rear Gear Box -14 Pc set - GPM TRU013" title="TAMIYA TRACTOR TRUCK Aluminum Rear Gear Box -14 Pc set - GPM TRU013"
alt="TAMIYA TRACTOR TRUCK Aluminum Rear Gear Box -14 Pc set - GPM TRU013" title="TAMIYA TRACTOR TRUCK Aluminum Rear Gear Box -14 Pc set - GPM TRU013"
alt="TAMIYA TRACTOR TRUCK Aluminum Rear Gear Box -14 Pc set - GPM TRU013" title="TAMIYA TRACTOR TRUCK Aluminum Rear Gear Box -14 Pc set - GPM TRU013"
alt="TAMIYA TRACTOR TRUCK Aluminum Rear Gear Box -14 Pc set - GPM TRU013" title="TAMIYA TRACTOR TRUCK Aluminum Rear Gear Box -14 Pc set - GPM TRU013"
alt="TAMIYA TRACTOR TRUCK Aluminum Rear Gear Box -14 Pc set - GPM TRU013" title="TAMIYA TRACTOR TRUCK Aluminum Rear Gear Box -14 Pc set - GPM TRU013"

Precision CNC aluminium rear gear housing

This RC-scale aluminium rear gear box is a CNC-machined replacement housing made for TAMIYA tractor truck platforms, supplied as a 14 pcs set TRU013. Machined from 6061 T6 aluminium under controlled tolerances, the housing delivers improved dimensional stability compared with polymer units and aids thermal transfer away from drivetrain components.

The component geometry supports both single- and dual-shaft configurations found on tractor truck models, with bore and boss locations set to align with original mating parts for minimal backlash. Hardware supplied facilitates direct assembly: 3x14 Stainless Steel Button Head Screw - 8 pcs, and 3x20 Stainless Steel Button Head Screw - 4 pcs.

Use this machined housing when a robust, heat-managing rear casing is required to stabilise driveline mounting and reduce thermal drift during prolonged operation; this product is an RC aftermarket component and not for real vehicle service.

Compatible Models

  • 56323 RCTR Scania R620 6*4 Highline 11050823
  • 6325 RCTR MAN TGX 26.540 XLX 11050961-001
  • 6344 RCTR Grand Hauler 11053957
  • 6335 RCTR Actros 1851 GigaSpace 11053607-001

This GPM TRU013 aluminium rear gear box is a CNC-engineered direct-fit upgrade for compatible TAMIYA tractor truck kits, providing greater case stiffness and improved thermal control for enhanced drivetrain longevity.

What tolerances are targeted in the CNC process?

Manufacturing targets tight dimensional control to match original mounting faces and shaft bores; this reduces wobble and maintains gear mesh under load. Exact tolerance values vary per batch but are tighter than typical injection-moulded plastic parts.

Is heat treatment applied to the aluminium?

The housing uses 6061 T6 material condition, which provides a balance of strength and machinability suitable for structural RC components while offering good thermal conductivity.

How should I check alignment during installation?

Assemble the gearbox with the supplied screws and rotate the drivetrain by hand to confirm free movement. Inspect shaft runout and gear mesh; small shims or slight repositioning of bearings may be required on modified chassis.

What fasteners are provided with the kit?

The kit includes stainless steel button head screws: 3x14 (8 pcs) and 3x20 (4 pcs) for securing the gearbox and attaching it to the chassis interfaces as intended.