From my truck driving-this is what I have used and what works. The Centrimatics with ball bearings in ATF in a metal ring that mounts between the drum and wheel works best. Balancemasters with mercury in a metal ring that mounts between the drum and wheel doesn't have enough weight to do anything-don't waste your money. Equal-packets of powder that goes inside the tire works somewhat until the powder gets clumpy from moisture-course if you use Nitrogen, that will work. Golf balls-according to my tire man-a definite no-no since they can do interior tire and wheel damage (that's enough for me!). Any of these additional dynamic balancing devices should only be used with a statically balanced tire and wheel. They aren't designed to offset an already out of balanced tire. Good luck, TomC
It seems to me that golf balls or other balancing media would have to be the correct amount of weight, if the whell tire combo needed 6 oz and you put 8 oz of media in the tire it would not work right . Is this correct?