Rhino Racing YD-2 Lightweight C-LSD Differential UnitRhino Racing (#RR 610) YD 2 Lightweight C LSD Differential Unit Feature: For: Yokomo YD 2 series Rhino Racing SHARK Centrifugal Limited Slip Differentials for YD 2 which provides you more forward traction by applying more resisting torque when the throttle is engaged. Increased throttle response. Faster reaction and weight savings *lightweight version is the same as the regular version except it comes with a plastic main gear and housings.