My daughter has this '01 Dodge 1500 magnum, it has a chrysler 9.25 rear end in it and it makes this awful almost grinding noise when decelerating, not when speeding up, not when maintaining speed, only when decelerating. I read up on some of the Dodge forums and thought it was the clutch packs, I replaced those, the ring, pinion, carrier and bearings all look really clean, no metal shavings no discolored oil, no excess play, the clutch plates looked a little worn so I replaced them, got it back together and drove it, still this noise.
I made this video of the noise, this thing has the worst tire noise I've ever heard, it's obnoxious but she likes it, so. You can plainly hear it above the tire noise and wind. Thanks and I appreciate any insight in to what this is.
01 Dodge 1500 Magnum rear end deceleration noise - YouTube