Sorry Eric, I missed your last question. Will try to have look again for this.
The intermediate gears had been supported by radial bearings an axial washers, followed by taper roller bearings with collapsing bushes between the inner rings and fixed distances to hold the preload while simply tightening the nut to 88Nm.
The last procedure is discribed in the TD5 DiscoII manual.
And I'm not a fan of the collapsing method.
Here's my way to keep the customer satisfied:
Big end of the axle is not supported but showing down, inside the gearshaft both of the two taper rollers and a 60mm long distance cylinder is mounted added by an other distance outside, the fat washer and nut, tightened by hand.
While rotating and forcing down the play between the parts will turn down to zero: the clock's finger doesn't move any further down. Now you will turn the clock to Zero!
Next step is to lift up the axle.
Again you have to rotate it and force it upwise until the you are sure the shown measurement is the correct lenght of what the distance has to be cut down + 0,05mm for the preload!
So you can order the correct length or just ask your next neighbour using a lathe.
Best of all:
You are able to proof it outside what you are going to install the box, just in a vice!
Needed torque is 88Nm.
You need the distances used befor too.
And a something reading torque between nothing and very litle more than nothing!
The manual says 0,56 and 1,5Nm.
You are on the very good way if it will show like this!
Enjoy the difference.