Limited slippery differential for remote control model vehicle

A limited slippery differential used in a remote control model vehicle, comprising:

• a housing defining therein an accommodation chamber and four grooves, said grooves being inwardly curved in the peripheral wall of said accommodation chamber in a crossed manner;
• a main gear fixedly mounted on one side of said housing;
• a first output unit and a second output unit, said first output unit and said second output unit each comprising a transmission gear and an output shaft, the transmission gears of said first output unit and said second output unit being mounted in said accommodation chamber at two opposite sides, the output shaft of said first output unit being inserted through said main gear and connected to the transmission gear of said first output unit, the output shaft of said second output unit being inserted through an opposite side of said housing remote from said main gear and connected to the transmission gear of said second output unit;
• and
• a differential unit mounted in said accommodation chamber of said housing, said differential unit comprising a cross shaft, four sliding blocks, four bevel gears and four spring members, said cross shaft being set between the transmission gears of said first output unit and said second output unit, said sliding blocks being respectively sleeved onto the ends of said cross shaft and movable back and forth in said grooves of said housing, said bevel gears being respectively slidably mounted on said cross shaft and engageable with the transmission gears of said first output unit and said second output unit, said spring members being respectively sleeved onto said cross shaft and having respective two opposite ends respectively stopped against the center of said cross shaft and said bevel gears.