Hello. I recently lowered my z about 3 inches or so. I also did kinetix upper arms( I cut the inside fender and welded in patches to create plenty of clearance) and rear camber arms and spring bucket delete arms (toe arms). Everything looks like it has plenty of clearance but when I hit a bump there's a hard bang coming from the front end. I thought I read somewhere that something needed to be removed when going this low but can't remember what. Is it the steering stops hitting the tie rod ends or something? That's the only point that looks like it could hit.

 

If it's making a noise, it's probably leaving a mark too. See any scratches, etc?

 

It was the arm hitting the patch that I welded in. I underestimated how much they had to extend the arms to get my camber within spec. The guys that havnt cut that section out must be getting some crazy slams when they hit bumps because mine are about 2 inches higher than that point when they hit.