Skip to content

Next Dispatch: 11h49m38s

Australia's Ultimate Hobby & RC Shop.

GPM Racing

GPM Carbon Steel 32T 1.6mod Front and Rear Complete Differentials with 10T 1.6mod Input Gears 4Pcs - Blue

Part no. TXM1211-B

1 in stockWrite a review

Now $178.17was $251.83 You Save $73.66

Sale now on

or 4 fortnightly payments of $44.54 with afterpay

The GPM Carbon Steel Diff Set Delivers Heavy-Duty Toughness For Traxxas Trucks, Fully Assembled With 32T Bevel Gears And 10T Input Pinion Gears

  • Add Your Choice of Diff Oil for A True Custom Set Up
  • 4140 Carbon Steel Gears Withstand Extreme Brushless Torque
  • 7075 Aluminium Diff Cases Improve Internal Heat Dissipation
  • Includes 32T 1.6 Mod Diff Gears And 10T Input Pinions
  • Direct Fit Upgrade Fits Traxxas X-Maxx And XRT
Select Option: Blue

Want more than 1? and we'll email you when they're here.

Pay later with afterpay zip PayPal

  • 1 in stock · Order in 11h 49m, dispatched today

  • Checking delivery dates…

  • 60-day returns · 12,000+ 5-star reviews · 03 5292 1101 ·

Overview

Reinforce the high-torque drivetrain of your large-scale Traxxas monster truck with the GPM Carbon Steel Front and Rear Complete Differential Set. Designed as a direct heavy-duty replacement for factory assemblies, this complete set arrives fully assembled to simplify maintenance and upgrade installations. Combining 4140 carbon steel 32T bevel gears with matching 10T input pinion gears, these differentials are engineered to handle the brutal punishment delivered by 8S brushless power systems on extreme bashing terrain.

Built for long-term durability, each unit features a hybrid 4140 carbon steel and 7075 aluminium diff case paired with precision 7075 aluminium gear spacers to maintain a strict gear mesh under load. Precision 15x24x5mm rubber-sealed bearings ensure smooth rotational efficiency while keeping trail debris out of internal components. Supplied ready for user-selected silicone fluid, filling the cases with recommended weight oil provides tuned traction control across front and rear drive axles.

Features

  • Complete Front And Rear Differential Assemblies Ready To Add Oil and Install
  • Heavy-Duty 4140 Carbon Steel 32T Bevel Gears And 10T Input Pinions
  • Hybrid 4140 Carbon Steel And 7075 Aluminium Differential Cases
  • Precision 7075 Aluminium Gear Spacers Maintain Consistent Gear Mesh
  • Includes Factory Sealed 15x24x5mm Bearings And Leak-Proof Gaskets
  • Replaces Factory Traxxas Part Numbers 7880, 7790, 7881, And 7791
  • Direct Fit Upgrade For Traxxas X-Maxx 8S, 6S, And XRT Platforms
  • Genuine GPM Performance Upgrade Part

In the box

  • 2x GPM Complete 32T Front & Rear Differentials
  • 2x GPM 10T Input Pinion Gears
  • 4x 15x24x5mm Rubber Shielded Bearings

You'll need

  • 1x Silicone Differential Fluid (20WT/200cSt Front, 30WT/350cSt Rear Recommended)

Specifications

Part TypeComplete Differential Set (Front & Rear)
Material4140 Carbon Steel & 7075 Aluminium
Bevel Gear32T 1.6mod
Input Pinion Gear10T 1.6mod
BearingsStainless Steel 15x24x5mm Rubber Shielded
CompatibilityTraxxas 1/5 X-Maxx 8S, X-Maxx 6S, X-Maxx Ultimate, 1/6 XRT 8S, XRT Ultimate, X-Monster
Replaces OEM Part Numbers7880, 7790, 7881, 7791

Complete Differentials

Tooth Count32TTooth, 10TTooth
Pitch1.6Mod
Oil FilledNo
MaterialCarbon Steel, Aluminium

Reviews

No reviews yet. Own one? Tell other hobbyists what it's like.

Questions & Answers (1)

Have a question, or an answer? Our team and other owners both reply.

  • john23 Apr 2026

    Question: are they a direct fit for the xrt and are the tooth count the same as stock

    DanielStaff10 Aug 2026
    Answer:
    Share what you know