Only technicians with the proper skills and experience should attempt to install wheel hub assemblies, because there are a number of things that can go wrong during the installation process. Customers unfamiliar with the proper installation steps may attempt to disassemble wheel hub assemblies to better understand them. However, wheel hub assemblies are sealed units designed to function without regular maintenance. Opening a unit could damage its inner workings. Also, customers unfamiliar with the proper tools can struggle installing units, resulting in wasted time and damaged assemblies. Customers should look to specialists to install wheel hub assemblies.