This new reproduction instrument cluster voltage regulator is compatible/replacement for 1967-68 Galaxie / Monterey and related full-size models; 1967-68 Cougar; 1966-68 Fairlane / Falcon / Comet; 1968 Torino; 1967-69 F-Series (100, 250, 350) pickup truck. This is a new electronic instrument voltage regulator. The electronic regulator is more accurate, and does not need adjustment like the original mechanical regulators. Fits on back of instrument panel. NOTE: Electrical parts are non-returnable once installed. We will replace defective units only.