Originally Posted by bertrandsv87

Diff balancing, as rotating mass is very important ! Symmetry around the diff axis changes with shimming and adding different weight oil. It gets really complicated when adding centrifugal forces to that mix, resulting most of the time in a blown diff, after all efforts have been exhausted . I say stick with a spool up front, and a solid ball diff in the rear ! Or if you must use a diff, try to learn from the Russians with their Awesomatix sealed, oil filled, and adjustable ball diff running 16 ceramic balls !