Aux Battery Core Support Bracket E1TZ-10A705-A

Agreed. I should update my first post. I was thinking there had to be a difference originally but they are the same. I thought Gary's had a slight angle to the right although that would have made mine an unknown and it's not like they made a lot of variants

Mine is actually the 81/ and came off an 86 diesel.
The 80 is a z shaped piece with just one hole on each end.