This power antenna mast is for Factory Power Units. Mast is 100% identical to the mast you would get from the dealer, thus there is no universal fit here. Fitment: Is Compatible with 1991 Buick Estate Wagon Is Compatible with 1991-1996 Buick Roadmaster Wagon Is Compatible with 1992-1996 Buick Roadmaster Estate Wagon Is Compatible with 1991-1996 Chevrolet Caprice Sedan and Wagon Is Compatible with 1991-1996 Chevrolet Impala Is Compatible with 1991-1992 Oldsmobile Custom Cruiser Wagon