Hot Racing optional super heavy duty solid billet steel rear differential (diff) locker (spool) for the 1/7 th scale UDR Replaces the factory plastic/metal differential locker setup . If you crawl, this IS the upgrade to get.
FEATURES:

- CNC machined solid billet steel
- Compatible with the front or rear differentials
- Replaces stock Diff locker for extreme durability
- Black oxide finished for corrosion protection
YOU WILL RECEIVE:

- One (1) locker spool (gear not included)
- Four (4) M2.5x8mm ring gear mounting screws
REQUIREMENTS:

- Recommended to use a removable-type locking adhesive on screws threading into metal
- Do not over tighten hardware
COMMENTS:

Replace TRA stock TRA8590