I'm thinking of Ford Explorer rear axle for my next project. There are a few being broken up for spares on ebay. But I would like to know if there a particular model to look out for, to get LSD and decent ratio (3.50) etc? Are the auto axles different from those in manual cars? Is there any particular model/year I should look for? And finally: what kind of price would you expect to pay for an Explorer axle?