Parked truck last night no problems. Drove today, and had a very noticeable vibration and howl on decellaration only. It almost feels like the rear tires are cupped and vibrating. Checked tires, everything looks perfect. There's no vibration or howl when accellerating. I only feel this in the seat, not in the steering wheel at all. Only problem with the truck since new. Currently have 43,000 on the clock. Can't believe this could have developed over-night, with no indication what-so-ever. Any ideas or similar problems??
Thanks in advance
Thanks in advance