GPM Racing 20CRMNTI Steel 32/10T Rear Differential Gear Set for Traxxas 1/6 Funco Pro Scale 2WD Sand Car 8S-109076-4 (STPS1032T)

Technical rear differential upgrade for 1/6 sand car drivetrains

The GPM STPS1032T rear differential gear set is engineered as a direct replacement for the TRAXXAS FUNCO PRO SCALE 2WD 1/6 sand car. It replaces the stock rear bevel and pinion with a larger 32T bevel and 10T pinion in hardened 20CrMnTi steel, using a spiral tooth geometry and an increased M1.6 module to reduce backlash and deliver more even load distribution through the rear gearbox during heavy sand operation.

Intended for hobbyists who need improved wear resistance, this set requires correct shim and mesh set-up within the diff carrier and precise grease application to protect against abrasive sand intrusion. Pay attention to run-in checks and torque cycles to verify uniform tooth contact across the spiral profile.

Packing includes

• Diff Bevel Gear 32T - 1pcs
• Rear Pinion Gear 10T - 1pcs

Original Name / Part No:

7791,7792

Compatible Models

• TRAXXAS 1/6 FUNCO PRO SCALE 2WD SAND CAR 8S-109076-4

A precision GPM aftermarket solution, this gear set focuses on improved fatigue resistance and smoother engagement for sand-focused use; validate mesh and lubrication during fitting for best life.

What material and heat treatment are used for STPS1032T?

The gears are manufactured in hardened 20CrMnTi steel with a heat treatment aimed at improving surface hardness and core toughness to resist abrasion and shock loading.

How should I verify correct spiral tooth contact?

Set initial mesh with recommended shims, apply grease, then run the diff under light load and inspect tooth patterns for even contact across the face; iterate shim adjustments as needed.

Are any machining changes required to the diff housing?

No machining is expected for the compatible model listed, but verify housing clearances and carrier seating for proper mesh alignment during installation.

Recommended maintenance intervals for beach use?

Inspect gear faces and bearings after each heavy beach outing, clean out abrasive contaminants and reapply suitable diff grease to maintain protection and minimise accelerated wear. Write Product Review Please sign in your account before you can write any review. Sign In Close

Made to order: GPM Racing parts are shipped to us from GPM's factory, so please allow around 14 days for dispatch.