When installing new brakes, it is important to pay attention to where you place lubricant. Lube ensures noise-free braking and proper system operation. Lubricate all moving and sliding components to ensure noise-free and smooth braking system operation. A thin layer is all you need. Apply lubricant on caliper pins, clips, edges of the brake pad mounting tabs, and back side of the brake pads if needed. Do not apply lube on the friction side of the brake pads.