On four-wheel-drive vehicles, the transfer case contains gears that connect a second drive shaft to send power to all four wheels instead of just the front or rear ones. The transfer case on some ...

The New Process 241 is an aluminum-case, chain-drive transfer case that was used in Chevy, Dodge, and Jeep 4WDs beginning in 1987. It was offered with both passenger- and driver-side front outputs ...