This is the Team Integy Blue Locking Differential Hub for the Traxxas Revo 2.5 and 3.3.  This is a great way to increase your traction in loose or slippery condtions.  This also makes driving through snow much easier because it keeps power going to both wheels, which keeps both tires turning at the same speed.  To upgrade the front and rear of your truck for even more traction, purchase a quantity of "2" of these.  This is a direct fit hop-up part.

FEATURES
Aluminum construction
Anodized blue in color
CNC machined

INCLUDES
One Differential Locking Hub