The two reasons for front suspension overhaul are usually wear and tear of what is a hard working assembly, or, accident damage. As with all precision assemblies, the more old worn or damaged parts replaced with new the better the overall results, both for handling and aesthetics.
You may wish to add this and perhaps some of the parts listed below to the same shopping cart.
Add as many new parts to the same shopping cart as you wish, a new guide bush 51414MAZ003 and fork-Seal snap ring 51447KA4711 for example and still only pay the same single fixed price shipping cost.