Dropping my front differential has made a wonderful difference for me. The angle of the half shafts -esp on the passenger side - was so acute that the tripod style cv would give a slight upward push on the diff with every rotation of the front tire. this happened esp when the front end would dip from a bump in the road while traveling. I had an intermittent bump brump noise that was solved by dropping the differential to where the half shaft is much more horizontal. As I type this I'm expecting UPS to walk in with a used driveshaft. I have a lot of driveshaft noise- long story- that expect to fix with it.