Can a manny tranny from a w123 240D be swapped with that of a w123 300D turbo? Is it the same bolt-on procedure as mentionsed above?

I have seen euro 300D's with 4spd manuls, but not the turbos. One would assume that the 240D and 300D shared the same trans.

I miss the 4spd gearbox in my old 240D.

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'82 300D Turbo 216k miles