411338 Bilstein 5150 Adaptor for Crossbar Mount 2 1/2-inch ROUND END
411338 Bilstein 5150 Adaptor for Crossbar ("feet") mounting.
If you need to add a crossbar at one end of the Bilstein Racing shock, this adaptor must be pushed / inserted after removing the stock default bushing that came with the shock.
This mount has 2 bolt small holes that are spaced 2 1/2 -inches center to center apart on this adaptor.
This part is also known as E4-GV3-Z009A04.