As the title says, I am hving a problem finding what it is I need for repair parts. I call it a steering knuckle but I think the shops are refering to it as upper supports. Anyway, it is the part that connects the lower front arm to the wheel assy. The screw keeps popping out which creates enough play to throw the drive shaft out of the wheel universal. I have used thread sealer and cleaned the parts before using it but the screw still comes out. I think the threads are are stripped in the plastic knuckle, any ideas guys?