THUNDER TIGER Piper J-3 Cub Assembly Manual page 7

Insert a piece of piano wire through the root rib of the wing panel
and "fish" the aileron servo lead through the wing. (Photos 9 & 10)
Photo 9
Photo 10
Use a pair of tweezers to pull the servo lead through the exit hole
in the wing panel (Photo 11).
Photo 11
Place the servo in the wing panel in the servo mount. (Photo 12)
Photo 12
Place the servo hold down plate over the servo and drill through
the plate into the servo mount taking caution not to drill through the
wing. (Photo 13)
Photo 13
Using M2.5X8 wood screws, screw the servo hold down plate in
place (Photo 14)
Photo 14
Locate the correct servo cover and install in the right wing panel.
Drill 4 3/64" holes at the four corners. (Photo 15)
Photo 15
7
WING ASSEMBLY