Traxxas Slipper Clutch for Slash 4X4 — Preassembled 54T Spur Gear, 1/10 Scale Drivetrain Upgrade

If you want a ready-to-install drivetrain component that reduces drivetrain shock and gives predictable traction control, the Traxxas 6878A slipper clutch arrives assembled and includes a 54-tooth, 32-pitch spur gear. It fits 1/10 scale 4X4 Slash vehicles and is supplied by Traxxas as a factory part number 6878A, making it straightforward to drop into place whether you're repairing a worn clutch or upgrading from a high-stall unit.

How does this slipper clutch affect on-track performance?

The slipper clutch helps protect gears and drivetrain parts by allowing controlled slip when loads spike, smoothing power transfer during launches and rough terrain. It reduces sudden shock to transmission components and can make throttle inputs feel more predictable, especially on loose surfaces.

• Preassembled for consistent engagement and reduced setup time
• Integrated 54-tooth, 32-pitch spur gear for correct mesh and alignment
• Designed to absorb drivetrain shock, extending component life
• Useful for tuning wheelspin and traction response under load

Will it fit my Slash 4X4 and how easy is installation?

The 6878A is made as a direct replacement for 1/10 scale Slash 4X4 models, so compatibility is straightforward when replacing a factory slipper clutch. Because it ships fully assembled with the spur gear installed, installation is quicker than assembling individual components; basic tools and routine clutch adjustment are all that’s needed.

• Factory part number 6878A — matches supplier specs for Slash 4X4
• Ships fully assembled; minimal disassembly of your vehicle required
• Standard clutch adjustment procedure applies for fine-tuning slip
• No additional spur gear purchase required — 54T included

What maintenance and setup should I expect?

Because the unit arrives assembled, initial maintenance is limited to proper clutch tuning and occasional inspection for wear or debris. Periodically check shoe condition, spring tension, and spur gear teeth for damage; light cleaning and re-lubrication will keep engagement consistent.

• Inspect shoes and springs after hard runs or collisions
• Clean gear teeth and mating surfaces to prevent grit buildup
• Adjust slipper tension to balance traction and drivetrain protection
• Replace worn parts promptly to maintain predictable behavior

Can this be used as an upgrade from a high-stall clutch?

Yes — the 6878A is suitable as an upgrade from high-stall clutches, offering a preassembled package that brings a controlled slip characteristic and the correct spur gearing. It provides a practical way to change how the vehicle releases power to the drivetrain without swapping multiple separate parts.

• Transforms abrupt engagement into smoother power delivery
• Includes the correct 54T spur gear, eliminating compatibility guesswork
• Works well for drivers seeking improved drivetrain protection
• Can be tuned to prioritize either acceleration or component longevity

Who this is for: Hobbyists and racers running Traxxas Slash 4X4 1/10 scale trucks who want a no-fuss replacement or a straightforward upgrade that reduces drivetrain shock and arrives ready to install. If you prefer to skip assembly steps, want the correct spur gear included, and seek consistent slipper behavior with minimal setup, the Traxxas 6878A is a practical choice.