The three wing bolts (AN8-22A) can go bolt side in the spar or the bolts through the wings and of course nuts on the opposite sides. What to do?

You need two 3/4 socket heads. Then the combination at the top for the wing side cavities because the opening is not at a good angle for tools.

The rotating socket spanner is really good for holding the inboard upper side nut which is accessed through the hole at the underneath side of the spar box. (don’t forget to use washers both sides)

This trick works really well for seeing what you are doing inside the spar box when putting on nuts or feeding through a bolt.

This is how I tighten a nut on the upper wing. Note I’m saying a nut on this side. The other two nuts go on the spar box side.

Here’s where the bolt goes on the inboard part.

Summary

We have 3 nuts and 3 bolts to hold on the wings.
When installing the wing:-

OUTBOARD two holes one on top of the other
1. Top Bolt goes through the spar
2. Bottom bolt goes through the wing

INBOARD one hole
– accessed through the spar by getting in the back seat and the other side with the cowls off at the wing root
3. Bolt goes through the wing (this means you thread the nut on from the back seat in the spar position)

Please let me know if you have a better way of doing this.