At least on the older stuff...clutch and brake pedals, and mounts, are the same....even the go pedal should swap...
Now...100/200 series...Hmm...I think the firewalls may be different between the manuals and autos; which would be much more involved...but hey, if you're gonna do it....
I too, never had any issues with my A440 trans in the 80. That being said, I've never had any issues with any of my 4 speed manual trans either...
It was much, much easier to have a coffee in the 80 than it is in the 45....
:safari-rig:
-H-