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OPERATING RANGE Dodge Cab & Chassis R3500 HD

NV271 Transfer Case - Service Information

OPERATING RANGE

Transfer case operating ranges are

  1. 2H (2-wheel drive).
  2. 4H (4-wheel drive).
  3. 4LO (4-wheel drive low range.

The 2H range is for use on any road surface at any time.

The 4H and 4LO ranges are for off road use only. They are not for use on hard surface roads. The only exception being when the road surface is covered by ice and snow.

The low range reduction gear system is operative in 4LO range only. This range is for extra pulling power in off road situations. Low range reduction ratio is 2.72:1.