For sale used D series MFactory Helical LSD 40mm. Comes with fresh bearings. I bought it from a guy who ran it for one pass, but he had issues with the countershaft bearing backing out locking the car in gear. He decided to scrap the whole tranny and go D2B. I saw him pull the diff, the trans looked fine other than the countershaft bearing sticking up. I never installed it. Goes for $700 new, and the bearings are about $50 new. $600 shipped OBO

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