Exclusive input seal 7 barrier construction keeps dirt and moisture out and oil in for longer life. Best performance in the industry.

Input bearings Largest input bearing for long life.

New! Worm gear 25° tooth angle gives higher torque loads and load capabilities. Provides 40% longer life and better reliability in tough conditions.

Exclusive output seal 7 barrier construction keeps dirt and moisture out and oil in for longer live. Best performance in the industry.

Exclusive Grade 8 bolts Used in critical areas for higher strength than normal Grade 5 bolts.

Expansion chamber Cap made of non-corrosive cast aluminum; rubber diaphragm allows oil to expand and contract during operation.

Largest capacity rubber diaphragm Expands with heat and pressure to minimize condensation.

Threaded endcap Allows accurate bearing pre-load, to increase bearing life.

Bull gear Highest load capacity in the industry and longest life. Longer keyway and thicker hub.

Multi-vescosity gearbox oil Exceeds 85w 140 GL5 oil for long gear wear under extreme load conditions.

Heaviest gearbox housing Designed to distribute loads more evenly with more material in high stress areas.

Longest output shaft (steel) Exclusive with Valley® Gearboxes! Provides extra clearance between gearbox and tire, reducing mud buildup, which in turn prevents seal damage and extends the life of the gearbox. The shaft, combined with the special offset rim provides a reduced overhang load.