The shaft drive assembly is rugged, well engineered and uber reliable - but - like all mechanical assemblies, certain elements will wear over time and use.
The easiest way to refurbish this vital transmission assembly back to backlash free, consistent functionality is to replace those worn or damaged components with new. It would also be wise not to interface worn parts with new, which could cause premature wear of the new replacements?
Related transmission parts you may wish to consider:
Pro-workshop gasket sealant: 08C70K0234M. Easy to apply with results to professional levels of excellence.
Add as many items as you wish to the same shopping cart, new washers 09160160290916410008 & bolts 015500825A0924714002 for example, and still only pay the same single fixed price shipping cost.
This component may have other applications within the Suzuki model range, so please check the part-numbers you order are correct for your model.