Designed for GM vehicles year 1991 and up Brass SO-239 stud included Ultra lightweight, durable aluminum construction Stud is compatible with all 3/8" x 24 thread stud antennas Application is as a mirror mount Pro Trucker Aluminum Mirror Mount With Standard 3/8" x 24 Threaded Brass SO-239 Stud For GM Vehicles 1991 and Up. This mirror mount has a U-shaped ring that attaches to the mirror of you GM vehicle.

If you're looking for a durable and reliable mirror mount, look no further. Features and benefits include:

Ultra lightweight, durable aluminum construction
Brass SO-239 stud included
Designed for GM vehicles year 1991 and up
Stud is compatible with all 3/8" x 24 thread stud antennas

This mirror mount is great for Firestik, Francis, Wilson, Pro Trucker antennas, and all other fiberglass antennas up to 5' in total length with a standard 3/8" x 24 threaded end. Pro Trucker is a leading innovator in the CB radio industry with more than 3 decades of experience. Try this mirror mount out today, and you'll be glad you did!