selling 2 original power beam sealed beams . both bulbs work on both beams .  ONE PAIR(2) AC GUIDE SEALED BEAMS GM power beams .5962548. CORRECT FOR 1971 TO 1977. HURST OLDS, CHEVELLE, CAMARO NOVA DUECE YENKO ,FIREBIRD MONTECARLO TRANS AM . BUICK GRAND SPORT . CHEVY PICKUP,ETC. THESE WILL FIT  CARS AND TRUCKS WITH A 2 HEADLAMP SYSTEM 7 INCH BULBS. (6014) THE BULBS WORK ON BOTH BEAMS . FOR THOSE WHO DEMAND ORIGINAL GM  PARTS   IT DOES NOT GET BETTER THAN THIS.  . THANKS FOR LOOKING