Coil spring missing bolt and clamp on rear end

[AZBuckHunter]

Today while working on my truck I noticed that nothing was holding the passenger side coil spring in other than compression. You can see where it had been digging into the arm where it should've been mounted.
Appears to have been that way for a while.

I'm looking for one of these clamp/brackets whatever it is if anybody happens to have one or know what it's called, if not I'll look online this week. The driver's side has the bolt and clamp to hold the spring.