Grating, Scraping, or Growling Noise
1. Kickdown band out of adjustment.2. Low-reverse band out of adjustment.
3. Output shaft bearing and/or bushing damaged.
4. Governor support binding or broken seal rings.
5. Oil pump scored or binding.
6. Front and/or rear clutch faulty.
7. Planetary gearsets broken or seized.
8. Overrunning clutch worn, broken or seized.
9. Low fluid level.
10. Clogged oil filter.