[Juggernaut]

I have progress springs and everytime i back out of a parking place or doing a tight U turn or any situation where I turn the wheel allmost all the way I will hear a thunk from the front of the car. I only hear it when im going very slow. Saturn will not touch anything because of aftermarket springs. Any ideas what it is? Im thinking something might of come loose after i installed my springs. But it was fine for months after i installed them.