Ahh, I now understand. No, I don't have a diesel, that's why I am confused.
My 5.6L M117 engine didn't have those kind of dampers. (Edit, I think I had them, I just can't remember)
Here is why I used a wooden block under the oil pan. When I tried to remove the bolts for the engine mounts, they wouldn't budge. I guess I don't eat enough Wheaties in the morning. Anyway, by applying upward force then down while turning the blots loose, I was able to get them off without rounding off the heads and then resorting to drilling or welding crap to get a hold of them. The engine is heavy and when the mounts are worn, I believe that side forces act on the blots making them hard to come off. That was my experience.