We found out if your running radial tires 4 degree caster shims work great. Napa part number is 264-4107. They are not cheap ($12 to $13ea) sometimes the store makes you buy a box of 6. If need I keep them in stock. Factory only had 2 degree.
Does that go for stock as well as a dropped axle? If so I'm going to Napa with that part number. I've been there three times trying to get caster shims for my truck with no luck.
