One more post about this from me because I’m up early and I see all the comments so of course it’s the Internet and I feel compelled to write. I’m speculating here, which is useless and probably not even correct, but what the hell it’s the Internet so why not.
1) Sweetwater sells drums and hardware in boxes. They don’t sell parts. I don’t want to call them the Walmart of the musical instrument sales, but they’re not a drum shop, they’re not a guitar repair shop they don’t actually do anything but receive the boxes and ship them to you, or act as the middleman as a dropship. So the idea that they have this part is out of the question unfortunately. So they’re contacting Gretsch, and this is an overseas Taiwan part from Gretsch that comes to Gretch as a complete assembly, so they don’t necessarily have it sitting around either.
2) Sweetwater doesn’t want to replace your whole Tom receiver for one plastic sleeve, whether you broke it or whether your little sister broke it, or however it happened. To do so they’d have to ask you to send yours back first, or send you a shipping label so you didn’t have to pay for shipping, or they would send you a new one with the packing slip so you could put yours in the same box and send yours back to them when you got the new one from Sweetwater that they would so graciously ship. Apparently they are not going to do that, unless you ask them or perhaps pressure them to do it.
3) all of this is to say you should really contact a real drum shop, Dales in Pennsylvania, Pro Percussion in LA, Forks, or Maxwells, someone that has new and old parts in stock and does repairs and tell them the sleeve that you need and pay the five dollars plus shipping that it’s going to cost you. Or you could keep banging your head against the wall expecting Sweetwater and gretsch to get you this part. But if you wanted it done and over with, I would advise you to suck it up and call a drum shop who might have that part sitting around from another one or two or four tom mounts that have something else broken on them.
Good morning everyone and good luck to the OP