All I have is the POSI unit with the spider gear, someone grabbed the yoke out.. Why I don't know.. The gear is wasted, but the POSI worked, both wheels turned with little resistance.. I'd be happy with $100.. Lemme know!

Could you tell us if this is a 2 or 3 series carrier?

Well, It's from a 1991, and it's a disk brake rear axle.. Is there many differences? I don't think I want to sell it if my 87 POSI doesn't fit..

OK, is it for sale or not, I did not understand your last post. I can tell the series if you know the gears that were on it, or if you could look at the part number on the carrier.