Not my Cruiser, but the battery was originally in my 80.
DieHard Platinum Group 34/78DT date code 8-14.
Just pulled it out of my wife's Subaru Outback, where it's been since May 2015. Hasn't quit yet, but it's getting sluggish. Amazed it lasted this long. Replaced with Costco interstate.
My DieHard platinum went 11 years. Then I bought an O`reillys that only lasted 2 years. Talk about disappointing!