The Trek Bicycle superstore is great place to go to get help and maintenance because they will know exactly what you need and how to fix it although before going there I would recommend using park tools videos on bottom bracket maintenance and then if you still can't figure it out go to them and they will get you a most likely fair price and good customer service
Bring your bike by and we can take a look and give you a quote on fixing it at no charge. Thanks!
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