I used the pan it came with. The primary problem in this case was the plug sticking out on the bottom (wish they had designed it with the plug an the side). I just thought that perhaps they had something to protect the pan in trucks that I could utilize.
The vibration came from 2 sources. I realized that even though the driveshaft was new, it had no weight attached, so I took it to Northwest Drivelines and they ran it and found that while close, they were able to remove some vibration at the rear yoke. Second, a careful inspection of the driveline angles showed that the front and back angles were not complimentary, and a shim in the perch solved that - 95% of the vibration disappeared.
