How do I reinstall a part I cannot determine where it goes?

We ordered and have installed a new igniter - gas valve page, part # 4. Now I need to know where part # 10, gas valve bracket goes since it has been about three years since we took this apart. I have the part but cannot determine where part # 10 goes as I have no schematic for this used dryer.
Sincere thanks for your help.

Are you talking about part 10 in this diagram?

http://www.appliancepartspros.com/partsearch/model.aspx?model_id=45469&diagram_id=28476739#d28476739