Your data could very well be correct for Euro spec cars. The US spec cars from 1990-1993 were as I stated with the 2.6 autos having the 2.85:1 diff and the manuals having 3.27:1 non-lsd (unless ASD was ordered). The 2.3l autos here were given the 2.87:1 rear diff. (or was is 2.6 w/2.87:1 and the 2.3 w/2.85:1, can never keep that straight
)
The OE brakes from my 1992 2.6 all carried W124 part numbers which cross referenced directly to the W124 (see the info on the link below)
While this does not specifically detail the W201 past the 16 valve model, I was able to confirm that the later model 2.6 used the same items as the 16 valve.
http://www.2phast.com/124_brakes.htm