Designed to correct the open differential traction issue
Heavy industry and agricultural alloy materials are used as raw materials, to guarantee the maximum ruggedness of parts.
Two-layer design provides more precise matching and higher work efficiency, reduces grinding and instability caused by moving parts.
Strongest materials forced 8620 steel for differential case, 4320 chromoly alloy steel for gears. 
Both available for most popular 4 wheel drive and 2 wheel drive vehicle model on market.
Unique oil return design keep your differential under lubrication protection away from unwanted wear. 
Tough hardened and thickness increased clutch gear to provide best work efficiency and stability.