Thanks for the link but I have a full inventory of the Eaton Posi's so I'm well aware of them.
If you look at the OP's first post he stated he has a Eaton differential. The Eaton diff is a HO52 or a HO72 Differential. I've been dealing with the HO differentials for many many years and I've NEVER seen a clutch style posi used in a HO as they have all been Detroit Lockers. So therefore telling the OP to put posi additive in it is incorrect as it will do no good since the Detroit has NO cutches and is gear driven.
The OP can pull the rear cover on the diff and look in between the holes in the carrier and see if its a Detroit or if its just a open unit. And yes the HO differential is a "drop out" differential but it also has a removable rear cover.
So there ya go Pepi. You got your cherry popped on HO52/72 Differentials