This ain't my first rodeo.
If you look at what you said in the first post you will see that it isn’t a complete sentence and is hard to understand what you are trying to ask. You were asked to restate your question. You did adding.
“Pretty much if ya don't get it, ya are not gonna have an answer...."Closed Diff" that is what I am lookin for.... “
Well I know what you are looking for and I answered your question.
Closed diff., Limited slip, Traction lock, posi, positraction, and sure grip are all used to describe the same thing. Although Closed diff is not used very often. Each manufacture calls theirs something different. Example Posi, and positraction is a GM term. Trac lock if a Ford term and Sure Grip is a Morpar term.
You need a carrier (that what the ring gear bolts to) from a 89-95 SC with traction lock. The 94-95 autos with traction control have an open diff.
Jeff