Don sent me four large grommets for the glare shield. I laid out the hole pattern and drilled the holes with a hole saw and filed edges smooth. They fit perfectly and lock in place. Removed the tie rods from the cabin top to the firewall and placed the glare shield in place and ran the rod through the glare shield and bolted in place. I used AN3-11A for the bottom and AN4-23A on the top. Glare shield held in place with clecos.