<div class="htmlview paragraph">The phenomenal sales growth of enclosure equipped two-wheel-drive (2WD) tractors demonstrates that comfort and convenience are very marketable features. The operator comfort of the enclosure has created an appetite for corresponding ride quality.</div> <div class="htmlview paragraph">Although the operator is subjected to acceleration in all three orthogonal directions; traditionally, tractor suspensions have isolated vibration only in the vertical direction. Measurements reveal that isolation of longitudinal acceleration provides the best compliment to the vertical suspension on 2WD tractors.</div> <div class="htmlview paragraph">John Deere has developed a ride comfort package which provides the first bidirectional suspension offered on a 2WD tractor.</div>