The driving flange to diff fixing is by bolt with a rubber seal etc and not a castellated nut. Is the torque setting the same for both methods?

The driving flange held by the castellated nut was used on early minis fitted with the rubber universal joint. The manuals quote 70 lbs/ft for this nut.

The Hardy-Spicer steel universal joint is held by the bolt and rubber seal arrangement and were fitted to automatic minis and to Cooper S after mid-1966. Torque settings for the bolt are quoted in the automatic transmission section as 40-45 lbs/ft.

I guess the torque for the nut is higher as it is a larger diameter than the bolt on the Hardy-Spicer.

Most helpful Bill B, thank you.