Earl's Straight Adapter Fitting -8 AN Female Swivel to 3/8 in NPT Male - Black Helmet Chin Bar Guard The factory shock mounts will

The factory shock mounts will be removed for installation

please see the Stilo ST5 FN 8860-2018 Carbon Helmet

00 in Wheel Bolt Pattern

Single 3/8 in Hole

1988-1990 GMC V3500

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