This is a Golden Horizons Purple Aluminum Front or Rear Diff Case for the HPI Savage trucks.  This will fit the HPI Savage X, XL, 21, 25, SS, and 4.6 trucks.  The bevel gear set installs inside this case which bolts to the bevel gear.  This will greatly strengthen your differential setup, and is highly recommended when building a performance truck.  If you would like to upgrade both the front and rear (recommended for the most strength), purchase a quantity of "2".

FEATURES:
Purple in Color
Aluminum Construction
Durable