The grooved nut holding the pinion came off alarmingly easy, hardly took any torque at all...

Next question: How do I get the inner ring of the front roller bearing off the input shaft so I can change the crush sleeve? Do I need to make a special puller for this?

The contact surface for the seal looks okay, no wear which I can feel with my nail. Only a small segment has the oil return thread, I think this is how it should be.

Karsten