Long Lasting Durability Engineered for reliability from the start, the 5-Link torsion suspension undercarriage will stand up to the most demanding jobsites. Every component has been designed to withstand the toughest jobsite conditions. It starts with an improved drive motor that is continuously lubricated from the hydraulic system, leading to a longer life. Other components are much larger and more durable, including the shaft inside the gearbox, track rollers and rear idler. Hydraulic hoses are carefully routed inside the undercarriage, free from potential snag points.