Made sure Tailcone not twisted and checked for level. Clamped Rudder Stop Brace to 1055 Stiffeners Match drilled holes in Brace and Bulkheads. Then Match Drilled holes in Stiffeners and Brace Clecoed 1006 Bulkhead to 1073 Skins and 1078 Skins and to the L & R Bell Crank Ribs Final Drilled holes common to Bulkhead and Bell Crank Ribs