I know with the 997R if the front wheels wobble its loose bearings in the shaft, a quick tightening of the nuts on top sorts this out.
I tried this first and no dice. Looking at the Zglide spindles as well. Since we are currently looking for a house with more property I may hold off on anything with the EZtrak and may trade it for a Ztrack with a 60in deck, but the Eztrak has 32 hours on it...I know with the 997R if the front wheels wobble its loose bearings in the shaft, a quick tightening of the nuts on top sorts this out.