Overview
Eliminate your differential and unlock maximum drive on your Traxxas Slash 4x4 with the Hot Racing Locked Differential Spool. Built around a precision-ground stainless steel shaft and a CNC-machined 6061 aluminum gear hub, this spool replaces the factory differential gears with a fully locked drive — sending 100% of the motor's torque to both wheels for stronger acceleration, better climbing, and more aggressive on-power performance.
This spool can be installed in either the front or rear differential location, depending on your tuning preference. Hot Racing's center-less ground shaft delivers a level of refinement and hardness that translates directly into longer service life and smoother power delivery.
Key Features
- Precision center-less ground stainless steel shaft
- CNC-machined 6061 aluminum gear hub
- Black finish
- Front or rear installation
- Replaces stock differential gears with full lock
Performance Benefits
- Improved acceleration off the line
- Better climbing on dirt, grass, and loose surfaces
- Stronger on-power behavior
- Eliminates inside-wheel power loss in the locked axle
Usage Notes
Recommended for off-road use only — locked diffs scrub tires on smooth, high-grip surfaces. Apply medium thread-locker on hardware during installation. Front installation creates aggressive turn-in behavior; rear installation maximizes acceleration and wheelie potential.
Technical Specs
- Material: Stainless steel shaft + 6061 aluminum hub
- Finish: Black
- Function: Locked differential spool (front or rear)
- Compatibility: Traxxas Slash 4x4 differential
What's Included
- One (1) differential spool
Fitment
Summary
The Hot Racing Locked Differential Spool is a smart, durable drive upgrade for Slash 4x4 drivers chasing more drive, more climb, and more aggressive throttle response. Drop it in front or rear and feel the difference on the very first run.
