Using the Faction Fab Rear Shifter Bushing is straightforward. Just remove the factory rubber rear bushing and replace it with this one - no modifications required. It will instantly improve your shifter feel. When using, make sure all connections are secure. As for maintenance, check the bushing and hardware periodically for any signs of wear or corrosion. Since it has stainless - steel inserts and zinc - plated hardware, it's quite resistant, but a simple visual inspection every few months is a good idea. If you notice any issues, contact our customer service for further guidance.