Slight Vibration When Coasting

Hey folks. Been lurking on this forum for 12 years now. Had an 04 from 2010-2013 and an 08 from 2015 til now.
Anyhow, I replaced all three u joints and the center support bearing with Spicer OEM last week and it got rid of most of the vibration but I’m still feeling a little bit of vibration when coasting at 30mph or so. Everything was reassembled in proper original alignment.


Could it be the Differential carrier bearing? No leaks. No whines or howls. No clunks. No grinding.
Am I just paranoid? One of the u joints had a set of bearings that was completely rusted out, but the other 11 were nice and greasy.
I presume the primary source of vibration was that. 144k miles.

 

does it change when turning while coasting?

 

When I turn, the vibration goes away after deceleration, but that could be because I don’t take turns at 30mph.