I had to get a new battery this Fall for my '93 Crown Vic and decided to get a slightly larger one than the MT 58. Upon installing my new BXT 65-650, I could see the hold-down wasn't big enough. I found that I needed a F2AZ-10718-A Clamp for the larger battery but was unable to find that exact part number anywhere. I came across this one with only the last digit being different. I took a chance and it worked. Perfectly. Now my new battery is safe and secure.