Bilstein Front Shocks
Put the lower spring seat back on the shock then that piece your talking goes over the shaft and gets tapped down around the shock
Look at this picture and it's labled as "metal cap"
Bilstien shock pic
Here's the link to the install article from ls1howto.com
Shock install
Look at this picture and it's labled as "metal cap"
Bilstien shock pic
Here's the link to the install article from ls1howto.com
Shock install

