This is a Brand New Gleason Torsen worm gear differential. It fits AMC Model 20 rears.Superior to clutch type differential as there is no engagement point. This differential is "Locked" all the time. The worm gear design allows you to accelerate, brake or change direction seamlessly. Great for the Drag Strip, Track, Autocross or Rockcrawling. Great for your "Daily Driver" A friend of mine installed one in his Jeep. During a recent snow storm (6 inches) he drove it in 2 wheel drive and told me it went as good as 4 wheel drive with an open rear. Limited supply available. Profesional installation recommended. Also is a direct replacement for HUMMER H1 Fits 2.73 and down. Can be installed in a 3.08 and up contact me for details. Foreign Buyers are responsible for any fees, taxes, or duty imposed by your government. We will not alter purchase amount for any reason.Be sure to add me to your favorites list! Foreign Buyers contact us for quote!!!

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