I received the upper sleeves for the rear lift struts that were back ordered so I completed the temporary connection of the lift struts to the wings. The upper connection points of the lift struts come from the factory with a hole only drilled on one side so that washout can be adjusted and everything can be set before you back drill the other side and install a through bolt and rivet the upper sleeves to the rear struts to finish the wing attachment. The factory supplies the short bolts, curved washers and castle nuts (they call it the lift strut rig jig) so you can make the temporary connection through the first hole.