This is the only banjo-style tuner replacement currently made for this guitar's unusual rear-mounted tuner design. At least one owner reported the fit was looser than the originals, so it is worth going in with realistic expectations rather than assuming a perfect match.
Why we say this
Owner reviews describe this as the only direct replacement currently available for Firebird-style rear-mounted banjo tuners, a genuinely narrow single-source category, not a padded gap. At least one detailed owner review reports the replacement bushings running looser than the original Gibson bushings on their unit, so treat as the best available option rather than a guaranteed clean fit.