How Does A Transfer Case Work. Sending power from the output shaft either through a chain or a set of gears torque is sent to the front and rear. Instead the case permanently sends power to all the wheels.
A part time transfer case receives power from the transmission and transfers it to two or all four wheels of the vehicle. Permanent 4wd is different from selectable 4wd in that it doesnt have a transfer case that allows you to manually send power to all four wheels. Mounted to the back of the transmission it splits engine power and sends it to the front and rear axles by means of front and rear drive shafts.
The transfer case control module uses speed sensors to read the speed of the vehicle processes it and then decide whether making the shift is possible and safe.
Permanent 4wd is different from selectable 4wd in that it doesnt have a transfer case that allows you to manually send power to all four wheels. Weber state university wsu automotive technology department transmission lab. Most transfer cases designed for off road use are able to mechanically lock the front and rear driveshafts together so each end of the vehicle gets an equal amount of engine torque. Your transfer case which is located right near your transmission is responsible for taking the power that is generated by your vehicles engine and distributing it to all four of your vehicles wheels.