I'm installing a spring. But my stock strut is not low enough to keep it held down. It's 1.5 inch drop, please help!!

 

This isn't the answer you're looking for, but you'll want to get some new struts suitable for the spring. I'm sure you could work up a spring mount mod to rig it up, but I don't think you'd be happy with how the car handles. There are quite a few good options, so happy shopping!