Clecod skin onto frame. Was able to get most of the rivets , but to get to the small spaces near the end of the ribs, I needed to mod the yoke a bit. Ground it down about 1/8 inch.
Installed the CS4-4 rivets along the bottom onto R-405. Not as pretty as the 426 solid rivets, but they are flush after using the special CS4-4 dimple die.
