How many axles are there in a truck?
2 to 5.
An old four-wheel truck usually has 2 axles, one each at the front and the rear. The 10-wheeler semi-tractor and semi-trailer usually has 3 axles, one front steer axle and two rear drive axles. The 18-wheeler truck is known to have a total of 5 axles, one in the front, two in the fifth wheel coupling, and one in the rear. The number of axles may exceed five for additional trailers attached to the truck.