Planetary Finals out of a btd8 82 same as 125b loader?

[Stageone]

I was selling what is left of my btd8 82 with the planetary finals to a man that requires finals for his 125b loader. I know nothing of the 125b and he knows very little about the 8's. From what I can see the 125b is very different set up but he is half sure they will fit. I don't want to sell him something that's of no use, so far I have not been able to match any part numbers on the outer casings, would the internals be the same?? Here is a couple of pic's of the parts machine, I have taken the blade and ripper group/rams for my own project.

Cheers
Scott