This CNC Delrin slider is the permanent solution for your broken rear window regulator. The aftermarket regulators cost $40-80 and are cheaply built and often have the wrong electrical connector requiring you to splice wires. This part replaces the cheap plastic slider that cracks in half. Our unique split design enables an easy on vehicle rebuild. In the majority of cases, there is no regulator removal required to repair your window. Save time and money by rebuilding. Synthetic grease included.