Quote:
Originally Posted by TheRealSy90
I've heard of Evo 8/9 guys adjusting their oem rear differential lockup by swapping the clutch plates around in different configurations as some are slotted and some are smooth etc.
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Right, there's configurations of the clutch discs to make some inactive and some active. I don't know about the EVO diff, but in this case it's about the discs with respect to their dogs/tabs picking up the casing or the side gears. If you stack like discs next to each other they become inactive.
Here's a good tech article from Cusco, which covers most clutch type diffs:
https://www.cusco.co.jp/en/pdf/LSD%20Guide%20Final.pdf