Different types of Floor Transmission Jack.

Floor Jack

A floor jack is the most common type of jack used for maintenance and repairs. They are easy to move around and position in the exact spot that needs to be lifted. A floor jack consists of a low to the ground unit with four wheels and a long handle that the user pumps to operate the hydraulic lift portion of the jack. The jack saddle is a round disk that makes contact with the vehicle.

The low profile of the base unit allows it to be easily maneuvered. The handle must be turned clockwise which closes the valve before pumping the handle to raise the jack. The handle is turned counter clockwise to open the valve and lower the jack saddle.

Floor jacks are the workhorses of the jack community and they are extremely helpful when performing work that requires the mechanic to get underneath the vehicle.

Scissor Jack

A scissor jack is the type of jack that most people have in the trunk of their car. It uses a screw mechanism to produce the lifting power. The main advantage of this type of jack is its small size and portability.

The jack is placed underneath the spot to be lifted and the screw is turned using a handle to raise or lower the vehicle. In many cases the handle will be the tire iron that is included with the car.

In most cases the jack that is included with the vehicle is designed to fit the specific lifting spots on the car. If a replacement is needed, verify that it will fit the car and has a lifting capacity that is appropriate for the vehicle.

Hydraulic Bottle Jack

This bottle shaped jack uses hydraulic pressure to lift heavy vehicles and other large equipment. These jacks have a high lifting capacity and must be used on a hard and level surface. A lever is inserted and pumped to lift the vehicle.

While bottle jacks are high capacity and are quite portable, they lack the mobility of a floor jack and are not stable enough to be used on the side of a road, making them less than ideal for changing a tire.

As with all jacks, check the lifting capacity of a bottle jack against the weight of the vehicle before using it.

Hi-Lift Jack

This is a specialty jack that is used with lifted or off-road vehicles. These jacks are mainly used in off road situations or where rugged terrain limits the use of other types of jacks.

Hi-lift jacks are often high capacity, rated up to 7,000 pounds and can lift a vehicle up to five feet. They are usually 3 to 5 feet long and can weigh up to 30 pounds making them unsuitable for carrying around in a typical car.

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