new(rbA:RigidBody, rbB:RigidBody, frameInA:Transform, frameInB:Transform, useReferenceFrameA:Bool)
setLowerAngLimit(lowerAngLimit:Float):Void
setLowerLinLimit(lowerLimit:Float):Void
setUpperAngLimit(upperAngLimit:Float):Void
setUpperLinLimit(upperLimit:Float):Void
setBreakingImpulseThreshold(threshold:Float):Void