AntennaX Off-Road (13-inch) Antenna for Chevy 2500 Silverado GM fits 1985 thru 2018 Chevy 2500 Silverado Replace your ugly factory (31 inch) metal shaft antenna with this stylish yet functional LOW PROFILE (13 inch) flexible rubber antenna PLUG-N-PLAY installation, which means it screws onto your existing antenna mount (a direct bolt-on part, no wiring involved) and takes a minute to do 99.9% of the time reception stays the same OR improves Does not affect On-Star, Bluetooth, GPS Navigation, or Sirius XM radio as those Satellite services use a separate antenna in your vehicle