AXLE SHAFT DIA 1.240 IN; 24 SPLINE; RING GEAR PINION RATIO 3.54; DETROIT TRU TRAC/SURETRAC/DETROIT LSD USES HELICAL GEAR SET PAIRS; NO CLUTCH; TORQUE SENSITIVE LIMITED SLIP DIFFERENTIAL; PROVIDES CONTROLLED RESISTANCE TO ONE WHEEL SPINOUT SO THAT WHEEL W/TRACTION GETS ENOUGH POWER TO MOVE THE VEHICLE