I dont think it would make difference either, but anything that can cut vibration (since it is all connected to the same motor/assembly) may help a little. Just a thought though.
Regarding the 3.0, I was just curious as to why if they have the same oil system there is no common failure, but i guess thats all in the "head"
They do have the extra oil return passage that we have to plug when putting on the 2.5 heads
