Ok my oil screaming eagle oil pump literally busted. I replaced the pump and now have a vibration in the engine. Smooth as silk when accelerating but vibrates bad when down shifting to slow down or cruising under light load. Any ideas?

 

not much can cause an oil pump to break, but a shifted crank shaft will do it real fast. pull cam cover and do a crank run out check, before you put any more miles on it.

 

welcome to the forum.
re-check your alignment.