The PB55.4+ has the lift capacity and power of a PB55.3+, but adds four directional steering. With the flip-of-a-switch the PB55.4+ converts into side-directional mode permitting the unit to be driven sideways in the direction of the load. driving the unit “sideways” in the direction of the load. Ideal for delivering extra long loads in those hard to negotiate, highly congested areas previously inaccessible at most construction job sites. Nothing can outmaneuver or outperform the versatile PiggyBack® PB55.4+.