vibration

i have a 2020 tacoma limited 4WD with a leveling kit. it has developed a vibration in the front that you really don't fell but hear faintly. Sounds almost like a bullfrog or rumble strip. The vibration goes away when shift into 4wd on the fly but comes back when disengaged. my 5th taco since 2010 and never had this issue. Anyone else have any ideas

 

Front diff needle bearing, quite common after lifting these trucks. Check out the East Coast Gear Supply bushing that deletes the needle bearing

 

Thanks its at the shop getting serviced. the mechanic says he doesn't notice it. So i have to show him tomorrow .