Originally Posted by
racer1812
IMO, for Stock, Ball diff. For the sole reason of rotating mass. But I don't know what a gear diff weighs with 2 spider gears and a pin removed. And you still have to fill that void with more fluid, again I don't know the weight difference between that and a ball diff.
They're close in weight stock for stock.
However, my ball diffs are around 14 grams, and there's NO way a gear diff can get that low.