Stop in for a cup of coffee

So when i moved my springs i did the pinion angle wrong (i'm stupid) and i'm off by 5-6*.... is that enough to cause my vibration? I know a bad angle can cause them just not sure how much is needed to cause vibration
Theres an app. Tremec toolbox.
Basically pinion goes down 2° from centerline of engine. I level driveline and set 2 degrees down. Done. Weight on rear suspension.