2005 Mustang V6 Battery replace w/ Diehard

Well i replaced my oem battery last night. i installed the sears diehard. my heat sheild blanket was allready messed up, but it wouldnt have fit anyway since the diehard is 1 1/2 inches wider. theres plenty of room in the battery box, after removing the plastic side spacers. i might put those spacers in mitre box this weekend and cut 3/4 in off each one and reinstall. i also might take the padding out of the blanket and have my g/f sew a new heat shield to fit it. so i guess i`m not dont yet