Installed and trimmed cotter pins through F-8109 slide tube. Installed modified SB437-4 snap bushing into F-8110 tube guide. Ran trim servo to neutral position (1/2" extension). Attached trim servo to the fork end of F-8109 slide tube. Installed Molex connector to trim servo wiring. Attached trim servo to the F-8111 support bracket. Modified both VA-158 springs to have 90 degree offset at the ends. Installed springs onto cotter pins and to the WD-807 control column.