MTU, it should be a fairly easy DIY to swap the rear diffs with the only real hard part of the job is needing some good muscle to do it. The diffs I can imagine are quite heavy because the axle shafts alone are like lifting some medium weight dumbells when working on your back with the rear of the car lifted. Since you'd be just swapping the diffs you wouldn't probably even need to remove the shafts completely, only from the wheels. There aren't that many bolts holding the diff to the chassis either. Just get a very good jack to secure the diff when lowering it from the car.

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012