Eibach lift

I have a 2022 Tacoma SR that I put a stage 1 Eibach lift 2inch front and 1 inch rear block. Since I installed it I get a rumble sound in the rear at about 50-55mph but I don’t feel a vibration. I thought the ride quality would be a lot better than the stock suspension but I was wrong. What should I try first to correct the problem with the rumble sound?

 

Are both blocks tight? or sitting straight??

 

If the rumble goes away in 4x4, its the front diff bushing.

The ride will soften over time. Be glad you didnt put aggressive 10 ply tires on or you'd be really upset!

 

The rear blocks are straight and tight. I haven’t tried the 4x4 yet but the truck only has 3,000miles on it so would the bushing be bad already? I plan on putting 285/75/16 on it soon.

 

Some lifted trucks make the left front CV axle bind and cause a hum while driving. It's not worn, its a bad angle. Read up on "ECGS Bushing" on here about it.