46RH making noise in Park and Neutral

Damn man. Stop making it complicated. Get a 5/16 open end wrench and tighten it just about as tight as you can get it with one hand and that little wrench. The ONLY reason is had a torque spec is to make DAMN SURE to get all of the slack out of the band before you adjust it. As long as it's tight with that little tiny wrench, it will be FINE. There's no magic involved that says it HAS to be 8 LB FT. It simply just needs all the slack out, that's all. Once you tighten it down good, then make your adjustment.

Also, what no one touched on is, low fluid level can make one make noise, too.

Lastly, never, ever, ever, EVER EVER use any kind of sealant on a transmission pan gasket Ever. Did I put enough evers in there? lol