All Models (Except Phoenix)
To adjust caster, loosen control arm pivot shaft-to-frame nuts. To decrease caster, add shims to front bolt and remove shims from rear bolts. To increase positive caster, remove shims from front bolt and add to rear. A normal shim pack will leave at least 2 threads exposed beyond nut. If shim pack thickness difference between front and rear exceeds 0.40", check for damaged control arms and related parts. See Fig 1.