" Quaife makes some GREAT diffs, but they do have there limitations.

AS a Glesson torsen spin off, read worm gear diff here, thay have a limited torque bias. Although this will NOT be important to many here, if you plan on road racing with it you will find out what I mean. Espically if you use R type tires.

Great for the street, IMHO, and CERTAINLY a REQUIRED part of ANY mods for your Merc. "