Any issues with a ToyTech 3 inch spacer lift

This is my first Tacoma and truck owned. Drove a Subaru Outback for 10 yrs before I bought my '15 in April '15 with 500 miles. Lifted my 2015 TRD with 3in ToyTech spacer and a leaf in the rear in July 2016 after owning for a year. No issues until Nov 2016 when the front differential went out switching to 4high due to snow. Dealership replaced under warranty. EVER since I have had issues with vibration felt in the floor and a little in the steering at 20 - 45 mph and issues with what feels like "wobbles" when changing lanes and going over potholes and speeds over 60/65 mph.
Dealership says it's normal and all is "tight".
Went to a local 4x4 place and they checked it out and noticed my front differential needed to be "trimmed". Still the same issues.
Replaced the tires with BFG KO2 to 265/75/16. Same issues.
I am fed up with the vibration and the wobbles. I also notice a knock from the driver side shock when I go over dips or large bumps. And also a clicking noise right as I apply the brakes.
Appreciate the suggestions. Will be honest - I drive 25 miles a day on highway but in rush hour. Hasn't been on any 4x4 yet. And like I said I am new to driving a 4x4 as well as it lifted.
I love my truck, just want to figure out what is wrong.

 

Try switching into 4hi when you get the vibration... If it goes away, then the issue is probably the driver's side needle bearing in your differential. Toyota pretends this isn't a problem, that it's normal. It's not. East Coast Gear Supply has a fix, search ECGS bushing or needle bearing replacement.

https://www.tacomaworld.com/threads...ibration-thread.152173/page-206#post-14800391

 

THIS!

 

That looks like a pre-loaded spacer lift, and it sounds like you have the dreaded needle bearing vibration issue.

 

You have stock upper control arms with a 3" lift so I'd assume you're out of alignment.

It's possible the knock you hear is your UCA hitting your springs.