General Description

The transfer case is used to provide power flow from the transmission to the front axle. The transfer case also provides a way of disconnecting the front axle to provide better fuel economy and quieter operation when the vehicle is driven on roads where four-wheel drive is not required. The transfer case provides an additional gear reduction when placed in low range. This is useful when difficult off-road conditions are encountered.

The New Venture Gear Models NV241 or NV243 transfer case is used on all four-wheel drive vehicles under 9200 lb GVW. The NV243 is similar to the NV241 except that it contains a electric shift motor/encoder attached to the transfer case in the area where the shift lever is ordinarily mounted.
The K30 Models with single or dual rear wheels will use the Borg-Warner Models 4401 or 4470 transfer case. Both of these transfer cases use a shift lever and shift linkage to change the operating range.
Models NV241, 4401, and 4470 are aluminum case, chain driven units with four modes of operation: neutral, two wheel drive high range, four wheel drive high range, and four wheel drive low range. Gear reduction for low range is provided by a planetary gear set.

A floor mounted shift lever is used to select the operating range for the NV241, 4401, and 4470. Indicator lamps on the floor console show the current mode of operation. When four-wheel drive has been selected, the four wheel drive indicator lamp is designed to come on whenever the front axle has engaged. A slight delay for the front axle indicator lamp to come on is normal.

The New Venture Gear Model NV243 is electronically actuated. Vehicles equipped with this model have no transfer case selector lever. The operator selects 2HI, 4HI or 4LO by pushing one of three switches mounted on the instrument panel. During normal driving the transfer case is in the 2HI mode. When the transfer case is in 2HI both the 4HI and 4LO switch circuits are open, and both lights are off. When four-wheel drive has been selected, the four-wheel drive indicator lamp on the switch turns on when the front axle has engaged. The lamp will blink while the front axle is engaging.