I have seen a powertrax that is like a sauser that replaces the spider gears. It isn't that. I just tore down a FF and the long side shaft was busted at the hub. I thought about it and looked into the carrier. Well it looks like a toyota detroit to me. It is a solid peice that screws together at the ring gear through three screws. Inside where the shafts slide in is a solid plate. There is no acces to the spider gears through the carrier without unscrewing it. There is also some filters on the carrier. It looks nothing like the open diff I have. It had 4.10's on it though. Is it a LS? Can someone help this idiot out and throw me some pix?