Hot Racing Lock Differential Hub Spool Revo HRASRVO1025

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This is a Hot Racing steel and anodized aluminum front or rear differential spool locker for multiple Traxxas vehicles.


  • Steel shaft and 6061 aluminum gear hub construction
  • Steel shaft is black oxide finished
  • Aluminum hub is blue anodized
  • The locker/spool eliminates differential action for greater acceleration and climbing
  • Recommended for off-road use only

Tech Specs:
Output Shaft Diameter: 6mm
Overall Length: 45mm
Driveshaft Screw Pin Thru-Hole: 2.5mm

1x Differential Spool Locker

Recommended to use a removable-type locking adhesive on screws threading into metal.
Check hub set screw for proper torque prior to installation.
Requires ring and pinion gears and factory Traxxas 5380/3979 differential housing, 5118 8x16x5mm bearing, and 5119 10x15x4mm bearing.
Replaces entire Traxxas 5381 differential assembly to lock the axle
Compatible with:
- E-Maxx
- E-Revo
- Revo 3.3
- Slayer Pro 4X4
- T-Maxx 3.3

This product was added to our catalog on March 22, 2018