Removed left Elevator trailing edge glue up materials, and riveted trailing edge. Riveted all remaining rivets. Fitted, drilled, deburred, dimpled and riveted trim tab hinge leading edge to left elevator after setting into place and checking clearances. Bent trim tab lower edge for clearance and travel and attached trim tab to left Elevator. Trimmed and mated fiberglass tip to left Elevator. Drilled holes, deburred and dimpled counterbalance arms. Countersunk fiberglass tip, then blind riveted fiberglass tip to left Elevator. Cut and fit left fiberglass tip to Horizontal stabalizer and drilled holes for alignment. Placed left Elevator on Horizontal stabalizer and checked alignment and travel.