Knocking front end on rough roads.

[Prefferle]

Hi folks, can anyone advise how to check the front driveshafts / CV joints for wear tolerances? I’ve had a mysterious knock coming from the front of the car and it’s only getting worse over time. I’ve replaced virtually everything and thinking it must be axles or ??
I’ve got nothing left to replace except the steering rack or front axles however, when I replaced all the inner and outer tie rods the rack shaft and mounting bolts are tight with no play, I even tightened the rack tolerance adjustment which tightened up the steering slightly but there was no steering play anyway…
All front suspension arms, tie rods, steering rack bolts checked, stabiliser bar with drop links replaced, both front air struts - all replaced with NEW parts in an attempt to get rid of this illusive knock. It’s only heard on rough road services and not there at all on smooth roads. The steering is precise and no noticeable play.

As an example It totally sounds Like a loud clunking noise similar to a strut knock or top shock mount knock if it was a typical car.

I’m at my wits end with this car and this issue, any guidance or anyones past experience on something similar is most appreciated.