Removed right wing bellcrank from wing and installed Trio Avionics roll servo onto bracket from Trio. Installed bracket/servo combination into wing. In connected push rods and torqued bolts. Installed nutplates onto wing tank attach brakets and cut the slot in the tank bracket per plans. Installed right wing and installed the center section bolts on the right wing, These were very tight fit as they should be but with the home made drift pins the job was about what I expected.