Okay, I recently pulled the cover off of my 78 k10's 12 bolt 3.07 rear end, I saw the carrier and what appeared to be two or three rods, one with a drum type thing on it that spun when I turned the driveshaft along with the carrier, what are these components? I have heard that these are the limited slip or posi components. I know that both wheels go in the mud, no matter what. I also know that in forwards, it always throws gravel from and leaves rubber from both wheels and in reverse it almost always does it too. I had to change the fluid because someone cut my vent tube and the differential filled with mud and water. The thing started moving both wheels once I put limited slip lube in it instead of the watered down slop it was using.
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