Has This Happened to You???

I'm new here and I was wondering if anyone else has experienced the problem I'm having? I recently purchased a 1972 Dodge Dart Custom. It's in great shape and only has 58,000 original miles. Doesn't need a lot of work, which is what I wanted. I decided to replace ball joints, bushings, bumpers, etc. I ordered a replacement kit. Whenever I got ready to connect the new lower ball joint to the spindle, the bolt holes didn't line up. The company says it should fit. When I put the new one next to the old one, they're not even the same size. Arm is longer and bolt holes are much larger. Could they have accidentally put ones for disc instead of drum? I'm attaching photos I sent the company so they can investigate. Any help is greatly appreciated. Thanks, BJ

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