can I use salvaged astromechs on rebel Ys? was just segregating my cards and notice they don't say scum only. They don't even have SCUM backs on them like the "ship cards" do... but when building squadrons with squadron builder that i use it wont let me use "scumbots" on rebel ships..

No. They are two different kinds of upgrade. Notice the symbols are different

can I use salvaged astromechs on rebel Ys? was just segregating my cards and notice they don't say scum only. They don't even have SCUM backs on them like the "ship cards" do... but when building squadrons with squadron builder that i use it wont let me use "scumbots" on rebel ships..

The Astromech and Salvaged Astromech are different upgrade types. They have different icons, and the Rebel Y-Wing does not have the Salvaged Astromech icon, so therefore cannot use it. Nor can Scum Y-Wings used regular Astromechs.

aha I didn't look on the "ship" cards...duh oh and NOW I do notice the shape is different too.. doh!!