Figure this is as good of a place as any to discuss since people here would be directly affected.

First saw it on the Eibach website, that Toyota had released a TSB for clunking Fox shocks which is basically a replacement with the 2021 version. Issue for people here is that the Eibach front coils dont work with the '21 shock as it has a stepped coil base instead of the flat '19&20.
Now the crappy part for users here... you would have to remove the Eibach coils and go in stock to get replacement. Mine have clunked since new in the cold.. but was always told its normal.

TSB-0094-20

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.

Would the idiots at the dealership even notice that it had Eibach springs since they are red??

We're aware of this update and have already updated our information. We are looking into the TSB and their solution to the problem. We believe it's a direct swap out for the Tacoma PRO assembly, which we have a spring for. If the TSB is replacing the whole assembly for the open end / Tacoma assembly, the current 4Runner PRO Eibach spring WILL NOT work on the TSB replacement parts.

::::UPDATE:::::

Confirmed with R&D that we're still looking for a 4Runner PRO in SoCal who has received the updated parts from the TSB and willing to leave the vehicle here for testing for two days. You will receive product and installation at no charge. Most Importantly, you get to be a hero to the community.

I don't think the biggest concern is if the warranty is approved, but rather the Eibach springs not working on the TSB replacement parts, and needing to save the Eibach's in an effort to recoupe some cash for the springs in the used market.

I would rather have the small amount of noise I sometimes hear, but only in my parking garage than give up the perfect stance the Eibach springs gave me.

My understanding of the physical difference in the coil is a stepped bottom (open end I think its called?) of the coil vs the flat bottom of the 19/20.

May even be able to throw on an upside down coil spring isolator for a quick fix if the Tacoma coils are the same design. (Step is facing the stepped mount on the shock and flat head faces upwards to the Eibach coil.)


My concern would be that you would have to go in on 100% stock suspension as there is a chance a dealer would notice the Eibachs and void the warranty for the shock. That and when replaced the Eibachs would no longer fit.

Luckily I can only hear something when I'm driving in parking garage and with no radio or ac running. If radio is on then I never hear it. Not worried at the moment.

Yeah, I haven't heard anything on my 2020 in roughly 18K miles of driving. I don't get in the cold all that often living in Arizona, but I have had the vehicle in ski country a few times and nothing was noticeable.

I think my Land Rover Discovery Sport's suspension is actually noisier in low speed situations than my 4Runner to be honest (can hear it with items like speed bumps for instance).

I haven't heard anything on mine but only have 9k miles. But figures...I just installed my springs and now see this....

has anybody had the Trd Fox shocks swapped by the dealer yet in SoCal.

I dealt with this the end of last year/beginning this year with my local dealer and then regional service engineer. Without resolution I went to the NCDS, which is basically a box-checking exercise because NCDS is controlled by the auto industry. Went on to initiate legal action, up to potential buyback against Ohio’s lemon law. TSB is now out, so kind of taking a couple steps back toward resolution with the dealer again.


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I sent a PM, I have a stock 4runner in Anaheim 🤘🏼

replied.

Just a reminder we're looking looking for a 21' TRD PRO for confirmation.

Looking forward to hearing the outcome on this!

You have new PM! We need your rig anyway! email [email protected] with your information.

Just wondering if there has been any confirmation on a 2019/2020 that has had the TSB yet? I am scheduled to have the TSB work done Wednesday and would be happy to provide before/after photos. Hoping to still have a solution to use the lift springs!