| Body | Fully hollow laminated maple with laminated spruce top (1954-1983) Sound posts fitted to some X-175s in 1983. |
| Binding | Body: 1-ply (1953-55), 3-ply (1956-73), 5-ply (1974-83) F-holes: unbound (1953-66), 1-ply (1967-83) |
| Neck | Unbound 3-pi mahogany (1953), bound 3-pi mahogany (1954-76), bound 3-pi maple (1976-77, 1979-83), bound 5-pi maple (1977-79); squared fretboard end (1954-71), rounded fretboard end (1971-83) |
| Pickups | Franz (1953-63), Guild "Anti-Hum" (1963-70), Guild HB-1 (1971-83) |
| Controls | Master tone and master volume (1953-57), tone and volume for each pickup (1958-83), master volume (1975-83) |
| Tuners | Kluson (1953-59), Kolb (1960-66), Grover Rotomatic (1966-74, 1977-78), Schaller M6 (1975-81), Gotoh (1981-82), Schaller Mini (1983) |
| Tailpiece | 1-piece stamped (1953-57, 1975-83), hinged stamped (1957-62), hinged cast (1962-1975) |
| Pickguard | 7-ply black/white plastic (1953-59), acrylic w/chevron and Guild logo (1960-63), acrylic stairstep w/5-point star and Guild logo (1964-71), acrylic stairstep w/Guild logo (1972-78), 5-ply black/white plastic stairstep (1978-83) |