TOOK IT APART AND TOOK OUT THE OLD DRIVE CUP IT WAS BROKEN IN 2 THE REASON IT BROKE THE NYLON NUT ON THE OTHER END SCREWED ITSELF FURTHER ON THE SHAFT LETTING THE DRIVE CUP COME OUT OF ITS POCKET IT WAS HARD TO GET APART THE DRIVE SCREW ACTUALLY DRILLED THROUGH THE SIDE OF THE BUCKET. I HAD TO PRY IT APART VERY CAREFULLY WITHOUT BREAKING IT. I PUT A NEW NUT ON IT