locking the rear diff

[syafiq]

i dont like the idea of gluing the diff, i rather place a hop-up part to lock the diff. can anyone suggest a hop-up part that i can use to lock my rear diff.
i m using awd mini z MA-010

[EMU]

You can get a spool diff. Basically, not a differential at all, a solid axle with a spur...
Atomic option http://store.hkshobby.com/product_in...oducts_id=5797
3Racing option http://store.hkshobby.com/product_in...oducts_id=5463

I have never used a spool, so I cannot really comment on which is a better option.