Yeah I noticed. I had autozone get me another reman pump. Swapped it in last night, used this method to drain out all the old (and prestone) fluids, and used oem ATF. This pump is better, it's nearly as quiet as my original pump but it is still jittery. At a dead stop, it's loud and sounds like its sort of struggling but I think that may be a result of whatever is causing the jittering.
Up on jack stands we did 4 or 5 lock to locks. drove it around for 15 minutes and went to a parking lot and did some slow figure eights so I could get more full lock turns in. still feels the same jittery.
sorry to keep dragging this on, not sure what i'm doing wrong