Fox 2.0 Rear Suspension Bouncy Over Bumps (1 Viewer)

[Kyrylo25]

Hi all,
I recently installed a Fox 2.0 kit with Eibach E30-59-006-01-02 rear springs on my 2020 Lexus GX460. The ride is definitely smoother and the harshness over bumps is gone, but I have noticed that the rear suspension still tends to "bounce" or fail to lower back to the ground when passing over speed bumps .

No extra weight or constant load in the vehicle.

I’d like to ask:

• Could this be caused by the springs?
• Or is it more likely that I need to adjust the shock rebound?

Also curious — which of these rear springs would be softer in real-world ride quality?

1. Dobinsons C59-325 / C59-327
2. Eibach E30-59-006-01-02
3. OME 860 (2860)

Another issue :
I’ve noticed: the rear right side sits about 3/4” lower than the left. I’ve already installed a KDSS spacer and an track bar spacer , but this didn’t fix the lean. Any suggestions on what else to check?

Appreciate any first-hand feedback or tuning tips!

 

[iwashmycar]

Did you loosen and retighten the control arm bushing with the weight of the truck on them? OEM bushings need to be locked in at ride height. This is far more important on the front arms, but rears are similar in design. Most people dont do this.

 

[r2m]

How fast are you going over speed bumps or whatever is causing it to bounce?
Sounds like rebound. Is there an adjustment for that on your setup?

 

[Kyrylo25]

How fast are you going over speed bumps or whatever is causing it to bounce?
Sounds like rebound. Is there an adjustment for that on your setup?

No adjustment on my shocks .up to 10mph