Electric Shift-on-the-Fly Transfer Case

Like its mechanical counterpart, the Electric-Shift-on-the-fly (ESOF) is also typically installed in part-time four-wheel-drive off-road vehicles such as trucks and rock-crawling automobiles. However, with a 16-bit/ 32-bit CAN -enabled Electronic Control Unit (ECU) that provides mechanism to select between 2WD and 4WD as well as between high and low gear ranges with an electrical switch, the ESOF provides a much more enhanced traction and stability over the Mechanical Shift Transfer Case. The ESOF is available in several variants.

Key Features:

Part-time system allows driver to select two or four-wheel drive operation

Lightweight construction reduces total vehicle weight to enhance fuel efficiency

HY-VO® Chain-driven output provides a quiet, four-wheel drive operation

Upper disconnect to chain stops unnecessary parasitic losses in two-wheel drive

Positive displacement oil pump and filter assures full lubrication when driving or towing while reducing maintenance needs

Helical gearing delivers a quiet, high & low range operation

Indicator light switch to showcase the drive mode for convenience

Electric shift / single lever shift control simplifies selection of transfer case operating modes

Electromagnetic shift-on-the-fly provides smooth engagement of four-wheel drive at highway speeds


Configuration Part-Time, Single Offset
High Range 1 : 1
Low Range 2.48 : 1
Low Range Configuration Helical 6 Pinion
Offset Right / Left
Lube System Gerotor Pump
Fluid Type ATF
Housing Material Aluminium
Dry Weight (Kg) 31
Fluid Capacity (L) 1.2
Typical GVW Rating (Kgs) 2500
Shift Control Selector Switch
Shift Pattern 2H - 4H - 4L