Limited slip differential clutch pack

A limited slip differential comprising:

• a differential case supported for rotation about an axis;
• a pair of bevel side gears in said case provided at opposite ends thereof, said side gears being arranged for torque transmitting engagement with respective output shafts and being rotatable within said case about said axis, each of said side gears having an engaging face extending radially outwardly from said axis;
• a clutch pack associated with at least one of said side gears for frictionally connecting said side gear to said case, said clutch pack disposed adjacent to said engaging face, said clutch pack comprising at least one first member rotationally fast with the associated side gear and at least one second member rotationally fast with said case and, said members being frictionally engageable with one another;
• a resilient spring member acting on said first and second members;
• an adjustment collar permitting a fixed pre-load on said first and second members;
• a non-resilient washer member fixedly positioned with respect to said adjustment collar and said first and second members, said washer member and having a selected yet fixed thickness for maintaining said clutch pack in a predetermined pre-load condition;
• and
• at least two bevel planet gears each meshing with both side gears and supported in said case for rotation about a planet gear axis perpendicular to said axis.