727 transmission with an ear or knob at the side? Help

Hi Guys,

I have a 65 NYer and I need to replace the transmission. Since it is hard to get parts here in The Netherlands I only have the choice of 1 transmission that is for sale.
In my car there was originally a 413 but since i bought it what an stuck engine i replaced it with a 1967 440.

The transmission that i can buy has a sort of knob on the side while other transmissions have an ear on that same spot.
Can somebody tell me what the difference is?
And are there other differences that i...

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Author: Hotrodharbor