nothingeLSe

I have been searching for info and pics on my t56 I recently purchased and want to be 100% sure it is out of a ls1 F-body. It has the face plate with provisions to bolt up the hydraulic throw-out bearing using the 2 bolts but am still not sure its out of a ls1. it has a tag with a bar code up top and the numbers 13-86-017 and underneath it has another set of numbers 61DAX U006214, it doesn't have the tag that is held on by a bolt but on the tail housing it has 13-86-066-904 it could also be 13-86-065-904 I am not too sure. can anyone help me out with this?