Not sure if this was mentioned elsewhere, but there is now a service bulletin for shock replacement. I only saw it as it was metioned on the Eibach website under the Pro lift coils. Replaces the shocks with the new 2021 version. Covered under basic 3 yr 36,000mi warranty.
T-SB-0094-20
https://static.nhtsa.gov/odi/tsbs/20...81779-9999.pdf
Some 2019 – 2020 model year TRD Pro Edition 4Runner vehicles may exhibit a knocking noise
when driving at low speeds over uneven road surfaces (small bumps and dips) in cold conditions.
The noise is noticeable in cold temperatures (less than 40˚F) and diminishes as temperatures
increase. The TRD Pro shock absorbers have been improve noise performance. Follow the Repair
Procedure in this bulletin to address the condition.