Cub Cadet Rzt Transmission Belt Replacement . If playback doesn't begin shortly, try restarting your device. I'm replacing the drive belt on ztr (not the spindle belt). 8TEN Drive Belt for MTD Cub Cadet RZT 42 50 RZT50 RZT42 from www.amazon.com 4.3 out of 5 stars 136. Cub cadet rzt series zero turn service repair table of contents cub cadet rzt deck leveling 3 transmission replacement log splitter repair manual mtd cub cadet 2010 and. Results 21 to 21 of 21 thread tools.