So I need an answer to this annoying issue that I can't, for the life of me, find an answer to. So when I replaced my battery, I purchased the Duralast Gold BCI Group 51 battery. (Which is the battery size Batteries Plus & Auto Zone told me the StarQuest uses) The battery however, was physically smaller than the battery that was in my Conquest when I purchased it. The battery tray looks worn enough to be the OEM tray, but I haven't actually checked. (It's missing the bolt downs) Did the group 51 battery get smaller over the years? Or is the old battery just an incorrect size? Note: I've gone through countless pictures of StarQuest engine bays and can't figure it out... I'll throw up a picture as soon as I get home from work today.