1964 dart idler arm question

I ordered a centric 620.63003 idler arm for my car since that's what rockauto called for.

after disassembling the front end I found that my idler arm is totally different.

I also can't seem to figure out what type of idler arm is have. I do know that on the chassis there is nowhere for a taper on the car side for a double taper one to fit. On the car side I definitely need the style that uses a bolt and a bushing.

Can somebody help me identify what I have on here so I can buy a replacement?

What I need looks like this one : https://m.autozone.com/suspension-s...arm-fa1012/dodge/dart/202952_148976_2793?aqs=

But the taper pin is inverted.

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