ARRMA 1/5 Centre Diff Upgrade 36T/12T 20CrMnTi Gear Set MAKX1236TS by GPM  [MAKX1236TS]

ARRMA KRATON 8S 20crmnti Steel Center Differential Gear set 36T/12T (M1.5) - GPM MAKX1236TS
Price:
AUD$46.20
Brand:
GPM
Model:
MAKX1236TS
GTIN:
4894538416671
Condition:
Brand New
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Performance-Focused Centre Differential Gears for ARRMA 1/5

This centre differential gear set is made from 20CrMnTi steel and includes a 36-tooth centre gear and a 12-tooth idler gear, both with a 1.5 module. It serves as a direct replacement for factory parts ARA310919 and ARA310921 and is intended for ARRMA 1/5 Kraton and Outcast variants listed below. The components are selected to improve durability under demanding RC driving conditions.

Replace worn or damaged centre gears with this set to restore correct mesh and driveline response. It is designed for standard installation into the existing centre diff assembly; inspect related components such as bearings, shims and backing plates during the procedure to maintain reliable operation.

Packing includes

  • Center Diff Gear 36T Mod 1.5 - 1pcs
  • Idler Gear 12T Mod 1.5 - 1pcs

Original Name / Part No:

ARA310919,ARA310921

Vehicle fit list

  • ARRMA 1/5 Kraton 4X4 8S BLX Brushless Speed Monster Truck RTR-ARA110002
  • ARRMA 1/5 Outcast 4WD 8S BLX Stunt Truck RTR-ARA5810
  • ARRMA 1/5 Kraton 8S EXB 4X4 Roller Brushless Speed Truck-ARA5208
  • ARRMA 1/5 Kraton 4X4 8S BLX EXB Brushless Monster Truck RTR-ARA5808V2
  • ARRMA 1/5 Outcast 8S EXB 4X4 Roller Brushless Stunt Truck-ARA5210
  • ARRMA 1/5 Outcast 4X4 8S BLX EXB Brushless Stunt Truck RTR-ARA5810V2

This upgraded material option is intended to match the original fit while improving drivetrain longevity for the listed ARRMA 1/5 models, requiring no modification to the centre diff layout.

Using a harder steel like 20CrMnTi can reduce deformation under load, keeping gear mesh more stable and improving predictability; tuning differentials should be done after confirming mesh and bearing condition.
Yes, the selected material offers improved wear resistance and strength versus many stock alloys, helping to withstand heavy-use scenarios and impacts.
Routine inspection and correct mesh adjustment are still required; these gears do not change recommended service intervals but can extend component life when installed with good bearing and shim condition.
See the compatibility list above; included are multiple Kraton and Outcast model references such as RTR-ARA110002, ARA5810, ARA5208, ARA5808V2, ARA5210 and ARA5810V2.

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