727 noise?

Has anyone ever had this noise?
[ame]http://youtu.be/SXxuT3GQwIc[/ame]
It happens when going from drive to neutral, or reverse to neutral. I get a similar sound that seems to follow driveshaft speed, but it's intermittent.
[ame]http://youtu.be/XtwTRZN8ESs[/ame]
Back story: bought cheap truck with front pump seal leaking badly. Trans shifted well and did not make this noise when I drove it home. I put a new pump with bushing and converter in it, had the valve body and front band out, adjusted, torqued valve body, put back in, and this is what I've got. Trans still shifts very well, I took inspection cover off, no rubbing. I'm pretty sure it's time to pull it back out, but I was wondering if anyone had any other ideas (vb sticking?). Thanks!