Swapping shimano and campag freehubs

Hi,

I need to swap out a shimano 11 speed freehub for a campagnolo one, question is before I get going..

Is the axle and all the other innards different? I have a sneaking suspicion that the axle is different.

Can anyone shed some light on this? Also interested to know what the best grease to use here if I take it all apart fully and degrease.

Thanks a lot in advance

You need to tell us what wheel/hub it is..

It’s a campagnolo shamal ultra wheelset

Campy/fulcrum wheels are just a straight freehub swap.

I just took the freehub off both and the campy one will go on what was the shimano, but not the other way around!

About to go through the same process on a Campagnolo wheelset that comes with a Shimano Freehub. What is the bit that I need to buy to make this a Campagnolo wheel?

Since I had both a campag and shimano I was able to swap them around but from memory I think the internal section profile of the freehub was different, so it required a slightly different axle, I think that was the only difference in the end - I think all other bits you could use either. But I would certainly check with manufacturers documents and don’t quote me it was a while ago!