TRAXXAS MAXX Rear Ring & Pinion Gear Set Hardened Steel #45 TXMS1200RS by GPM  [TXMS1200RS]

TRAXXAS MAXX MONSTER TRUCK Harden Steel #45 Rear Differential Ring Gear & Pinion Gear - 3pc set - GPM TXMS1200RS
Price:
CAD$60.63
Brand:
GPM
Model:
TXMS1200RS
GTIN:
4894538334531
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alt="TRAXXAS MAXX MONSTER TRUCK Harden Steel #45 Rear Differential Ring Gear & Pinion Gear - 3pc set - GPM TXMS1200RS" title="TRAXXAS MAXX MONSTER TRUCK Harden Steel #45 Rear Differential Ring Gear & Pinion Gear - 3pc set - GPM TXMS1200RS"
alt="TRAXXAS MAXX MONSTER TRUCK Harden Steel #45 Rear Differential Ring Gear & Pinion Gear - 3pc set - GPM TXMS1200RS" title="TRAXXAS MAXX MONSTER TRUCK Harden Steel #45 Rear Differential Ring Gear & Pinion Gear - 3pc set - GPM TXMS1200RS"
alt="TRAXXAS MAXX MONSTER TRUCK Harden Steel #45 Rear Differential Ring Gear & Pinion Gear - 3pc set - GPM TXMS1200RS" title="TRAXXAS MAXX MONSTER TRUCK Harden Steel #45 Rear Differential Ring Gear & Pinion Gear - 3pc set - GPM TXMS1200RS"

Rear differential ring and pinion upgrade

This 3pcs aftermarket differential gear set is a transmission upgrade designed for TRAXXAS MAXX rear differentials. The kit swaps the stock rear ring and pinion for hardened steel #45 components and includes a stainless steel pin to secure the assembly.

Hardened #45 steel parts offer improved wear resistance under repeated load, while tighter manufacturing tolerances reduce gear lash so the drivetrain transmits power with fewer shocks and more consistent mesh. These benefits are useful when setting diff preload, choosing gear oils, or tracking down drivetrain noise.

Installation notes: service the differential case following your chassis procedure, fit the new ring and pinion, confirm pin alignment and endplay, then test mesh and rotate the gears by hand before final reassembly. Use appropriate threadlocker or retaining methods recommended for your setup.

Packing includes

  • Ring Gear - 1pcs
  • Pinion Gear - 1pcs
  • Stainless Steel Pin 2.5x13 - 1pcs

Original Name / Part No:

8977

Specifications

  • Item Rear differential ring gear & pinion gear 3pc set
  • Material Hardened steel #45, stainless steel pin
  • Model Number TXMS1200RS
  • Compatibility TRAXXAS MAXX

The TXMS1200RS set is a direct-fit upgrade focused on rear differential durability and smoother engagement for TRAXXAS MAXX drivetrains.

This item is compatible with

  • TRAXXAS-1/10 MAXX MONSTER TRUCK-89076-4
  • MAXX W/WIDEMAXX MONSTER TRUCK-89086-4

Will this ring and pinion fit every MAXX differential case?

It fits MAXX models that use the same rear differential footprint; verify your chassis uses the same case and confirm tooth count and pin dimensions before fitting.

Should I change my diff oil after installing hardened gears?

Changing to a suitable gear oil after installation is recommended to match the new mesh behavior and to ensure consistent torque transfer across the diff.

Do I need special tools to install the pinion and ring?

Basic differential service tools and feeler checks are sufficient; a gear mesh gauge can help set ideal backlash and pinion depth but is not mandatory for experienced hobbyists.

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