These both have 30 spline shafts (just like Hilux) right?
EDIT: Oops, forgot to look in the Bible!

Overall that's 130mm wider, and divide by 2 makes 65mm, so if the 80 is wider equally on each side the 80 shafts are 65mm longer than the 60 shafts. Can anyone confirm these fingures?
EDIT: Just remembered about the 75 Series FF so I thought i'd chuck that in too.