Originally Posted by
TonyK
I have a real noob question here. I see spur gears with 8, and 12 diff ball holes. On my car now my spur only has two diff ball holes. The car runs but, what am I missing out on?
The more diff balls you run the less you will have to tighten the diff to keep it from slipping. This yields a much smoother diff with less wear and tear.