Last week at the Lincoln competition we had an interesting diff failure.
After the auto-x event we had the rear of the car on jackstands and one of the members noticed that we could move one of the wheels a large amount without affecting the differential or opposite wheel.
When we took the diff housing apart and removed the torsen unit we found a lot of metallic debris. What had happened was that most of the washers had failed and had been torn apart.
We currently are unsure of how this failure came about. Our housing was filled halfway with 75w-90 gear oil.
Besides possibly being a lubricity issue, does anyone have any other ideas as to what may have triggered this failure?