Hangar 9 Piper Cherokee Instruction Manual page 12

Section 2: Joining the Wing Halves
Step 12. Coat one half of the dihedral brace with epoxy up to
the center line drawn in Step 6. Install the epoxy-coated side of
the dihedral brace into the wing joiner cavity up to the center
line, making sure that the "V" of the dihedral brace is positioned
correctly.
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Step 13. Apply a generous amount of epoxy into the wing
cavity of the other wing half.
Step 14. Smear epoxy on all sides of the exposed area of the
dihedral brace and uniformly coat both wing roots with epoxy.
CONTINUED