Does anybody know what kind of locker this is?

[95toyrunner]

i found it in my 81 axle that i just bought and the owner doesn't know what it is, so any help would be greatly appreciated.

[79coyotefrg]

truetrac

[Duffil]

rusty.

any other pics/numbers/writing on it?

[95toyrunner]

i'll check later

[wflaw45]

truetrac

looks like the trutrac that i put in my last rig

[95toyrunner]

I'm thoroughly convinced that it is a trutrac. thanks for the help