2 Adapters with 2 different size for Install Short Stubby Bullet Aftermarket Antennas on Chevy Silverado colorado Avalanche Suburban & GMC Sierra Denali Terrain Canyon See more

Unscrew your factory antenna, determine which adapter is compatible with your vehicle, screw adapter on your bullet antenna and screw back into vehicle. if your truck antnena base bolts is 7mm then another adapter can be used as a extender. Choose the antenna mast . The antenna mast will come with the 2 Size adapters together. and they are the same OD ,fit perfectly. ALUMINIUM made,100% aluminium. 2 color for the antenna adapter : Polish & Black. 2 PCS Adapters with M7 or M6 female size for you install your replacement antenna,short / long /bullet style/Stubby aftermarket Antenna or even for a antenna block off. FITMENT: Compatible with Silverado colorado Avalanche Suburban & GMC Sierra Denali Terrain Canyon.