I put a larger battery in my 01 edge 4x4. I cut a piece of 1/2 plywood to bring up the floor of the battery box, and massaged the rear edge of the box for extra clearance. Had to release the battery cable from its first tie down so it would reach the post. Went to auto zone and bought a universal over the top of the battery hold down,because the factory wedge no longer fits, need to drill 2 holes for the j bolts to hook in on each side of the battery and then cut the bolts to length.(bolts will damage the hood if you don't cut off.)
I think that covers it. Ask if anything is unclear.