I have found that to fit the nick hulls I have to grind 1/18 inch off each side and then replace the metal tranny cover. The upper screw tabs protruding from the metal tranny cover prevent the urethane hulls from sitting down in place. His early nose worked but I had to cut some out of the middle and put the upper portion back on (see my M4 build)
This 3 piece cover is being a pain to make fit.