My Wrangler Door Carrier is designed to work with the stock or similarly sized bumpers. There are after-market bumpers that have two tow point/shackles on either side of the bumper which interfere with the Wrangler Door Carrier. These adapters attach to the brackets that you mount to your frame extending where the door carrier attaches to avoid these shackles.
These shackles are solid steel and are attached by a 5/8 inch Grade-8 bolt.
You will need these shackles if your the distance between the tailgate of your Jeep and the outer edge of the shackle is more than 8 1/2 inches.This is made in Central Florida by Mid Florida Fabricators in Ocala, Florida- a family owned company