anyone have hrparts rear upper control arms?

[GNFURY]

I installed mine onto the rear end that is out of the car right now, and there is almost 1/4 inch of space between the bracket on the control arm (the rear end housing side) and the new poly bushing that is in the ear of the rear end. Is this normal? Should I shimm it with something? add washers? I don't want to hear this clank around while I'm driving.