This is what simple driven axle, also known as a live axle, can look like. The drive shaft (red) drives the 20-tooth double-bevel gear meshed with a differential case. the 5X7 studless frame braces the differential and prevents it from skipping. Note that there are two separate 7-stud-long axles connecting the differential to the wheels-axles used in this way are called halfshafts.