The new designed NXG (NeXt Generation) LSDs: the strongest, most progressive and versatile LSD unit in the market place. The 3J clutch plate pack always runs with 8 active surfaces, even in our lighter settings, giving maximum surfaces and surface area contact during use. A new design pre-load spacer helps generate the pre-load. Rather than just have the 2 or 3 settings of other units, the unit can be 'fine tuned' to precise pre-load settings which when complemented with the choice of ramps, allows you to get the perfect LSD set up. The bevel and planet gear pack has been designed for a smoother mesh with a bigger and stronger tooth profile. This helps eliminate the rattle and excessive back lash that are often found in other plate type LSDs. All 3J LSDs are built to this design with the exception of the English Salisbury style unit. All units have the benefit of dual ramps allowing the driver to vary how the LSD reacts when entering and leaving a corner. Using the new NXG plate pack, there is now a strong, progressive, versatile Atlas LSD in the market place. Duel ramp blocks give a choice of ramp angles (25/70, 30/60, 30/90, 45/45, 35/35, 40/90 and 50/90) which along with the three factory preload settings of 20-25,45-55 and 85-95lbs/ft and the fact you can choose a specific pre-load setting if you so desire, provides the ultimate choice of set up.