Spindle Assembly for MTD 618-0595,918-0595,918-0593 with Double Pulley Quality Aftermarket Spindle Assembly Replace MTD,Cub Cadet,Troy Bilt 618-0593,618-0595 (A-B) Replace MTD,Cub Cadet,Troy Bilt 918-0593,918-0595 (A-B) Mounting holes are not threaded, use self tapping screws