Idler arm question for 68 dart

Previous owner did install 383 was a six with 73 disc brakes. I went to replace my idler arm with moog K7042. And when I compare them to what I took out the angles are not the same. If I install it in the car it makes the center link hit the oil pan. The one I took out doesn’t hit the oil pan. I do see that the 73 dart takes a different idler arm part #. Going through the paperwork from previous owner I do see that he did order the same part number I did whether he installed it I don’t know. So I’m confused did I just get a bad moog part or is there a bigger picture here that I don’t understand?

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