Rivet C-804 canopy slide cap to C-805 spacer. Layed out centerline on fuselage and drilled attachment holes to F-825 upper aft skin. Removed rail and deburred all holes. Primed upper skin on rail track location. Temporarily attached track and drilled the most forward hole through the back side of F-882PP rail receptacle. Removed track, deburred and countersunk hole. Installed track with required hardware. Cut L & R canopy rails. Cut forward relief on both canopy rails.