The truck is held perfectly still on a 20 degree incline just with the parking brake (rear wheels only). No rocking back and forth and no sliding. That’s a 36.4% grade, steeper than the steepest hill in San Francisco (31.5%).
The truck is held perfectly still on a 20 degree incline just with the parking brake (rear wheels only). No rocking back and forth and no sliding. That’s a 36.4% grade, steeper than the steepest hill in San Francisco (31.5%).