- Lower trim has a 7mm screw and T20 screw. Get rid of and pull down challenging. Not necessary to clear away lower trim for 2018's. ^I had to eliminate the bezel in the cluster to wash the Display screen off. There were some large particles clinging on to it. https://shroom-chocolate-bars98594.wizzardsblog.com/31874860/not-known-factual-statements-about-mustang-digital-dashboard