Post-Lift Vibration Question

I know this topic has been discussed to death, and I have read literally every forum on this site and others related to this issue, but wanted to double check before I make any moves to fix anything.

I recently installed the OME 3" lift from Toytec, with 886 spring up front (for my AllPro bumper and future winch) and an AAL in the rear (saving up for Dakars). I have NOT installed the front diff drop kit yet (CV angles look fine, but I do have it if I need it).

Since I installed the lift I have noticed a pulsing vibration around 20 mph. This happens no matter what gear I am in, and whether or not I am accelerating or braking. It does NOT happen when I shift into 4HI. The vibration feels like it happens as the drivetrain spins around - it is more of a pulsing feeling than a constant vibration, and the speed of the pulses seems to depend on my engine RPMs. It happens only within a few mph of 20, and nowhere else noticeable. I have not driven far yet (less than 50 miles), and am waiting for my new tires (Grabber AT2s) to be installed on Friday before I do a proper alignment.

Does anyone have a quick or easy answer for this issue? I have heard I should drop my carrier bear, I should shim my rear axle, I should drop my front diff, I should replace the front driver side CV needle bearing with the ECGS bushing, etc. Does anyone know what might actually fix this? Or does anyone know if this is actually a problem worth fixing? Could there be any long term damage to my vehicle if I decide I can live with this vibration?

I appreciate y'alls help on this!!!

 

https://www.tacomaworld.com/threads...differential-bearing-vibration-thread.152173/