Crawled under my rig 98 taco 4x4 auto lock diff. I've been having nosies from the front left side of my truck. I shook the inner portion of the cv and it had a lot of lateral play closest to the diff. Passenger side not so bad. I understand the cv's will move in and out and lateral play at the joint but shouldn't have any near the diff? Do I have a side bearing in the diff going out? Front of the truck shakes a bit upon acceleration and makes a wrrrring noise between 40mph and 50mph especially when I let off the gas. The wrrr has been worse but a 7oo mile drive in bad weather engaged in 4x4 made it better. Used to be twice as bad. Go figure. Any info Thanks!