Yeah they can, but I have never seen a shop not knowing what a SyTy is have a transmission hold up. They always fail. There are a few SyTy specific parts in the trans they usually get discarded. I had my trans rebuilt by a SyTy transmission guy and it was 1800 for the cheapest rebuild. And I had to ship it to SC.
Many people are swapping 80e’s in for a couple g’s more and never worrying about it again.