Lol...SSQA. I suppose could also be QASS but not widely used as such. I saw a bunch of those laying around a Kubota dealers back lot, so they must be available to convert from a pin on style.
Looks like your LA480 didn't offer SSQA as an option. Last year, I think it was, I was converting my L35. I found ATI but they don't sell direct and my dealers don't do ATI. I think I found one in middle TN and was preparing to drive until somebody on here found mine on Amazon. So I'm passing it on, this one should fit your beast. If I find that thread, I'll post a link. I've been pleased with the ATI. There are a couple of others, I think they're about the same price. You can also buy parts if you're into fab work.
I've decided to convert my L35's TL720 loader to SSQA. I found a NH! dealer about 2 hours away that will order me an ATI Tach-All QA-KU4 with about 4 week delivery. 2 Kubota dealers have been unable to help. Is this my best option?