Balance Shaft Removal Kit. Kit comes with stub, spacer, and cap. Usually kits don't come with a spacer, which is used on the crank shaft to replace the balance shaft sprocket. This saves almost 9 oz of weight on the crankshaft. Better option then having a sprocket spinning for nothing. Then you can get the ACL Balance Shaft bearings, which are cheaper than OEM. They are used to block off the oil passage, by installing them reversed, as top goes to the bottom. All parts are brand new.