Please help me identify this broken part(?) from my 904!

Any one know where to get a replacement one of these reverse band anchor links? Are they the same for 727 and 904?

I found this one on ebay but not sure if its the right one:
NEW Mopar 2204820 Assy RB Link *FREE SHIPPING* | eBay

Thanks again- you guys saved me alot of time and frustration!

Most any transmission shop has lots of old core transmissions & should either have one or can have one the next day....