Weird 904 to 408 magnum starter interference issue. Dakota starter won't fit? 64 push button trans. is that the problem?

Hey Friends,

In short, have a customer going rounds with starter motors. he has a 64 A body. with a 904 push button. our magnum blocked 408. His shop is absolutely destroying him on labor to attempt to randomly install random starter after starter motor. he has the dakota starter in hand now. won't go on. appears the shop may have ground on the block? but it also appears to have paint on it, so maybe that angle was there.

Is this just some mythical animal i haven't come across in the past?

maybe an odd duck starter motor in 64 only? is that an iron bell or something weird?

appreciate any input guys. thanks!!!!

pics below. web grabbed some LA and magnum bottoms...and then the others are from the customer.

I've had fullsized starers on magnums before....never ground a block. help please?

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