yep, the mounting brackets un-bolt off the 32. they can be a cnt though on one side, passenger sdie I think it was. I did it once thinking it would be the easy way to remove my UCAs' ie just take them out mount and all. but sadly it's not! not sure if the 33 or 34 ones un-bolt or are welded.
anyway, I know some places in japan have converted the 32s to 33/4 style front upper arms. I'm guessing (not sure) thouh that you'd need the 33/4 front uprights and maybe hubs too. but you may not need the hubs.
There certainly should be some benefit in doing it. if you have a crack and makie it work let us know what you thought of it.