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2005 chevy trailblazer_ls
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Discussion Starter #1
when i purchased my TB there were no tie down anchor points and i hadn't cared until now. i'm installing a sub and amp and would like to bolt it down but i'm not sure what size bolt i would need. i'd like to avoid drilling out the threads and dropping in my own bolt.

i used the search and couldn't find anything so i apologize if this is a repeat question.

anybody have any insight on this?
 
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