Went bad need to remove it how do I? Thanks

 

unbolt the battery cables, and there is a bolt at the on the bottom of the battery tray towards the middle of the truck that holds the battery down. Its got a little plastic wedge that goes with it. Then lift with your legs not your back

 

PLEASE - be sure to disconnect the negative cable first, and, when you reinstall the new battery, connect the negative cable last!

This is because if you touch anything metal with the wrench while disconnecting/reconnecting the positive cable, you will have a dead short to ground through your wrench if the negative cable is already connected. It will spark like hell, the battery could explode and your wrench could melt. (We won't talk about what could happen to you!)

- Jack