GPM Racing 4140 Carbon Steel Front & Rear Driveshafts and Drive Cups for Traxxas Mini XRT VXL 3S-108076-1 (XRTM6162)

High-durability 4140 driveshaft assembly for MINI XRT applications

This technical replacement set is specified for the TRAXXAS MINI XRT VXL 3S and contains front and rear 4140 carbon steel driveshafts with matching drive cups and set screws. The CVD-style dog-bone configuration is engineered to provide consistent torque transmission across 1/24-1/18 scale drivelines in hobbyist and light-tuning contexts.

Each shaft receives a black hardening surface treatment to increase contact hardness and resistance to wear relative to many stock CVD alloys. The CVD layout permits increased steering articulation while preserving engagement during suspension travel, reducing the chance of transient disengagement under cornering loads.

Critical dimensions from the supplier are front end-to-midpoint at 62mm and rear end-to-midpoint at 61mm, intended for installation at the front and rear CVD positions respectively. Components are pre-assembled for ease of fitment; apply a medium-strength threadlocker on set screws and torque to manufacturer-recommended values to ensure secure coupling under normal operational loads.

Packing includes

• Rear Driveshafts 61mm – 2pcs
• Rear Drive cups – 2pcs
• Rear Set Screws M4x2.5×12.5 – 2pcs
• Front Driveshafts 62mm – 2pcs
• Front Drive cups – 2pcs
• Front Set Screws M4x2.5×12.5 – 2pcs

Original Name / Part No:

10789,10789X

Compatible Models

• TRAXXAS MINI XRT VXL 3S-108076-1

As an engineered aftermarket option for the TRAXXAS MINI XRT VXL 3S, the XRTM6162 4140 driveshaft set focuses on improved surface hardness and reliable driveline engagement under increased steering and suspension movement, suitable for precision hobby upgrades and extended service life considerations.

What are the exact shaft lengths and positions?

Front dog-bone end-to-midpoint is 62mm and rear is 61mm; install in the front and rear CVD locations as specified by the supplier.

What surface treatment is applied and why?

A black hardening finish is applied to improve surface hardness and wear resistance, extending service life compared with untreated CVD alloys.

Recommended assembly procedure?

Fit components to the MINI XRT VXL 3S, apply medium-strength threadlocker to set screws, and torque to factory CVD coupler values. Verify clearance through full steering and suspension travel.

Maintenance intervals and inspection points?

Inspect set screw torque after initial running, check drive cup contact surfaces for wear regularly, and reapply threadlocker when any loosening is detected. 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.