Can someone help me identify this old Shimano derailleur? I want to poke around online a bit and see if I can find anything out about it. It's a long cage, on an old 18 speed Univega MTB. Thanks.
I can't find the exact model, but it looks very similar to this one that I found on VeloBase.
If you have the patience check out this list. Shimano starts around page 8.
I suspect it might be a bottom of the range version of a Light Action, but I'm far from an expert
EDIT:
I think it might be this one. You're fortunate I stumbled across this question when I was in the mood for a bit of a treasure hunt :)