Tow trucks

This story is about tow trucks. Tow trucks have a lot of parts in it. Three general types are in common usage usually based on heavy-duty pickup or medium truck chassis. Hook and chain-the oldest of these types in seen less frequently in developed countries, chains are looped around the vehicle or axle. Axle cradling evolved from the hook and chain technology to produce a large metal yoke that can be fitted under the front wheels. It cradles them, drawing the front end of the vehicle clear of the ground by a pneumatic or hydraulic hoist so it can be towed. Flatbed (also called a rollback) is when the entire back of the truck is fitted with a bed that can by hydraulically inclined and moved to ground level, allowing the customer vehicle to be placed on it under its own power or dragged onto it by a winch.
Tow trucks have sturdy chains. They also have long chains.