This listing is for one replacement Servis Rhino rotary cutter gearbox shim code 00758668. These shims are used to shim the input bearing / bevel gear on several gearboxes and are 0.020". Fits gearboxes on the following mower Series: TW, CT, SE, Nitro, Lumberjack, FR, FR and many more, used and many of the Servis Rhino mower series. Replaces code: 00758668 We sell many replacement rotary cutter parts. If you don't see the parts you need listed please contact us we would love to earn your business. We are listing new items frequently so please check our store often. We stock a wide variety of replacement parts for Agricultural Equipment please contact us if you have any questions or if you would like more information.