coil spring installation

[cobrajet21]

I'm having an awful hard time putting thes front springs in. where does the end of the top of the spring go in relation to that D shaped thing in the crossmember. These are 1 1/2" lowering springs. Every time i think i have them in i tighten the nut on the lower ball joint but i can still move the spring around on the bottom and the top pops out. i'm bout ready to tear up something. i've never done this before and just don't know what the i'm doin.