The second angle is taken at the machine flat of the U-joint yoke. We read 7 degrees off vertical here. This is our reference to confirm that the rear remains at the same angle when the new pads are welded on. We made a check of the Charger's old rear and found the same 7-degree angle between the pinion and the spring pads. It's really the angle of the original rear that needs to be matched-rather than that of the replacement rear-in case there's a variation in angles between the body types.