Driver side knocking

[pcdee]

Hello all!!

Front Suspension Components Already Replaced:

​Thrust Arms / Tension Struts (The large, forward-facing lower control arms with the fluid-filled bushings)

​Anti-Roll Bar D-Bushes
​Anti-Roll Bar Drop Links (The vertical rods connecting the anti-roll bar to the struts)

​Strut Top Mounts & Bearings (The assemblies at the very top of the shock absorbers under the bonnet)

Track Rod Ends

Strut Top Mounts & Bearings

​The Issue:
Persistent front-end knock/clonk when driving over bumps and uneven road surfaces.
​Diagnostic Notes to Include:
​There is absolutely zero noise, play, or movement when the car is jacked up and the wheel is shaken at the 12/6 or 9/3 positions.
​The noise only happens when the suspension is fully loaded with the 2.5-ton weight of the car on the ground.
Front end knock felt directly through the footwell floor over bumps. Completely disappears under braking.

I'm out of ideas

[Greydog]

I had a knock when I brought the car and went through a similar process. Not much left for you to change? just the upper wish bones and lower control arms. Upper wish bones are a fiddle and better with an assistant due to the nuts being inside the engine bay and the bolts under the wing. I set mine parallel to the ground for tightening I couldn't get a torque wrench in there as the strut was in the way so just did them up really tight with an extended ring spanner (been OK for 3 years) then tighten the spherical joint The lower control arms have different length inner and outer bolts mine were around the wrong way and very rusted so I brought new bolts din't change the arms just the bolts and re-torqued them no more knock

[pcdee]

Since the clonk is identical before and after the overhaul, it's either those upper wishbones you mentioned or internal play in the steering rack housing itself. I'm going to pry-test the upper arms next to see if they have any movement!"