Steering column MK IV

Hi all RHD’s

There is a difference in diameter between RHD steering column and LHD steering column and by consequence a difference of rubber grommet.
Can somebody give me the diameter of the RHD steering column?
reason : I’m installing EZ power steering on my MK IV DHC

2 1/16" same as MK5 / XK120, metric shows approx 52 point 5mm.