Quote: Yes. Static pinion angle on most stock, original cars is around 2 degrees negative. In other words, the pinion centerline points 2 degrees downward relative to the transmission centerline at rest.
This allows the pinion to run parallel with the transmission as the pinion winds up a tad under cruise.
If this is the case, then why does every tech article and diagram including all the ones posted here state to make the (static) center lines parallel (excluding drag car setups)? I can understand why you would want to do it on a drag car because it's always under acceleration. But a street car isn't always accelerating. Sometimes it's coasting or cruising with little or no load, in which case the nose down setup would cause a vibration. Sometimes it's braking which would make it even worse.
