I don't know but.... anything can be modified to fit...
I'd look at online parts and compare part numbers for frames,axles,hoods and other 'key' components to see what's different between the old vs new tractor. Is it a 'mechanical fit' problem or a 'hydraulic' one ??
You should post how 'old' your 'old' BX1880 is, especially the serial number. Perhaps you only need a 'new' bracket ? it's hard to believe a manufacturer wouldn't 'reuse' old part