No, it was a specific last half of '69 Model year only (due to sway bar mounting holes).

estimated dates
August '67 to February '69 ('68 & early '69 V8 b-body)
March '69 to July '69 (late '69 V8 b-body)
August '69 to ?? w/skidplate 440 ('70+ b-body)
August '69 to ?? 318 & 383 ('70+ b-body)