Install the included "jam nuts". The jam nuts are for stabilizing the adjustable feet and should be installed by unscrewing the adjustable feet and screwing the jam nut onto the threaded portion. The small end of the jam nut must be facing the Universal Tow Mirror and the larger knurled end facing the rubber feet, after positioning the adjustable feet to fit your mirror housing, the jam nuts should be tightened down onto the UTM housing.
by Camping World – May 28, 2015
Extend your rear vision further than any OEM mirror.
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