MB Maintenance Disc Has Me Confused

[280EZRider]

I want to replace the differential mount on my '77 280E. MB says there are 2 versions, the newer starting in 1979. The dealer just told me there is now just one version for all W115 and W123 cars. The problem is that the maintenance disc gives two different torque settings for the 2 big bolts (20 Nm difference) and a 5 Nm difference for the 4 bolts that hold the mount to the chasis. Does anyone know which settings I should use?