Review on 🔧 Enhanced Performance Brake Master Cylinder by Raybestos MC390824 by Jere Mosley

. Working now and cast quality looks good but can't comment on seal quality yet. This design tends to leak through the rear seal into the servo brake arm. Comes with port plug only and does not require a bleed kit. Vice. Look at an angle to allow air to easily rise back into the tank. Fill the reservoir, plug a hole and close the 2nd port with your finger. Use a short stroke less than 1 inch. Gently push the plunger with the connector cover. Close the hole again and let the plunger return. Press connectors and check for air bubbles in the reservoir (leave the stoppers in place, but U may drip in small drops) drip into the bowl. Step on the pedal, hold it, ask an assistant to tighten the leash, and repeat the process. The same procedure for the 2nd line. This will help keep the extra air bubbles from flowing down the brake pads. Finally, check the reliability of the pedal and bleed the calipers and drum cylinders. Tacoma removes the driver's side evap box to gain more room to work. Pretty simple build.