Carrier bearing drop or something else?

Just installed an Icon stage 4 lift kit on my 2015 Tacoma TRD Off road. Around 35-45 mph I am feeling a slight vibration in my gas pedal during acceleration and holding at that speed. It only started happening after installing the lift kit. Went back and made sure everything was tight or torqued to spec and didn’t notice and wear anywhere on the truck. Wondering if the 2.5” in the front and 1.5” in the rear messed up my angles enough to require a carrier bearing drop. If anyone would have any suggestions for me to try or things to look for it would be much appreciated!

You pretty much answered your own question, or the need for angle wedges between the differential, and the leaf springs. You should have took note of the driveshaft stock angle before the lift so it can be duplicated if having vibrations of sorts later. Could be the needle bearing in the driver side front differential if the vibration goes away when in 4wd. Sometimes you just have to put up with some vibrations anytime you deviate from what the toyota engineers designed the stock truck to be.