2002 Envoy Battery Replacement

OK, so I've checked almost everywhere I could think of and no luck... Is there a simple way (other than taking the truck to the dealer) to remove the brace and cover from the battery to replace the battery?

Thanks for any help anyone can give!

It's not as big a task as it may look. If you have a small metric socket set, you can do it. You have to remove the plastic cover from the radiator support, only two hex head screws and three plastic clips, then only two more hex heads holding the brace.

T