Fits full sized Bonneville, Catalina, Grand Prix. Bench tested, motor runs slow (had to help antenna to go up), cleaned mast & motor was able to retract. Clean condition as I had it on the shelf for 30+ years.The item "63 PONTIAC BONNEVILLE GRAND PRIX CATALINA FACTORY GM POWER ANTENNA" is in sale since Saturday, December 10, 2016. This item is in the category "eBay Motors\Parts & Accessories\Vintage Car & Truck Parts\Exterior\Antennas".weaverfamily" and is located in East Earl, Pennsylvania. This item can be shipped worldwide.