Howling from rear end
Thread Starter
Intermediate
Joined: Apr 2020
Posts: 38
Likes: 1
From: Keswick,ON
Howling from rear end
I have a new issue with my '96 LT1 vert. After driving for 20 miles or so (and only after-nothing before) I hear a pronounced howling/whining ( similar to but slightly different from a low power steering fluid noise) emanating from the rear end of the car when I am turning. There is no noise when driving straight. It may be slightly more pronounced when turning left. I am thinking it is from the diff, but am open to any other suggestions as to what to look for.
TIA
TIA
Drifting
Joined: Nov 2018
Posts: 1,745
Likes: 642
From: USA
It's possible it's the differential, but I would start by jacking up each rear tire. Once the tire is off the ground, grab the top of the tire with one hand and the bottom with the other and try rocking the tire in and out....do the same thing on the sides of the tire. Same procedure on both rear tires.....any "play"? Wheels should be tight, if you can move the tire/rim independently from the the lug nuts outward, you need a new hub assembly (wheel bearing). In the past I've had wheel bearing issues (front or rear) show up initially while turning, I believe this is from the "side loading" of the bearing that occurs while turning (lateral force). Also, do visual check of all bushings/u-joints and brake components. If you stand behind the car, do you notice one of the rear wheels tipped in more at top than the other? If so, start with that side for checking, dead give away of bad hub assembly or in need of alignment. Like I said, could be the diff, but I would go over everything else first! Good luck 👍
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
I would suspect wheel bearing. Differential gears and normally makes going straight and may vary with load. Wheel bearings noise vary from all the time to coming and going while turning.
