Set of worm gears:

• This will be located besides the jack, covering the shaft through a hole seen in the image so as to take the movement from it. The upper shaft will be connected to the jack besides. Once the jacking gear is operated, worm gear will start performing its job. It will take the movement of the shaft and will give it to the upper shaft which will then transfer it to the jack. This will be the way how the jack will operate and give the lift to the car.

• The hole seen above in the figure will be matched to the width of the shaft. This will be then fitted along the shaft in the adjustable configuration. The adjustable configuration means that when the jacking lever is not operated, there will be a gap between the hole and shaft so that the movement of shaft moves to rear wheel drive. When the jacking lever will be operated, the hole will compress and take the movement of the shaft, restricting 

Mechanical jack: 

The jack that we preferred will be of heavy duty. It will be different in construction from the regular mechanical jack. This jack will be more powerful and as our aim is to lift the car in deserts, we require a heavy duty jack of the kind mentioned below in the figures. As we can see the knob that is used to control the movement of the jack will be attached to the upper shaft of the worm gear. Movement of the upper shaft will than go to the knob and this knob will control the movement of the lift with a jack lever in the dashboard

:Black box

This is just a box assembly that will cover the jack. This has not got any specific specifications of any particular kind of metal or weight. It depends upon the size of jack installed in the car. Now the size of the jack is also dependent upon the car, small or big and also dependent upon the lift desired. If more lift is needed, jack will be of bigger size and so the black box assembles covering it.

Mechanical jack:

This mechanically operated jack will take the movement of the shaft to lift the cars. There is a big reason for choosing this mechanical jack instead of the traditional mechanical jack using hands to revolve the lever in order to lift the car. Those traditional jacks require a solid base surface to rest and then lifting is made possible. But in the deserts we cannot expect a solid base surface as we can only find uneven surface of sand buns for miles and miles. This was the concept came after a long study of the shaft movement. It will take the same movement of the shaft which rear wheel drives take to move the tires. This jack will be installed in a box and will be located ahead of the tires, a possible place where a good lift can be achieved. With the help of a set of worm gear train, movement which was being given to the rear wheel drive will be taken by the gears and transfer the same to the jack which will lift the car. 

Parts of the mechanical jack:

This jack will require couple of parts that will combine together forming a mechanical jack. These parts will have their own functions and based on it there classification will be explained.

Gear lever:

The set of gear will be added as an extra unit in the dashboard of the car. This set of gear will operate the worm gear fitted besides the jack, covering the shaft. This will be a set of two levers, one will activate the jacking mode while preventing the movement of the car by restricting the movement given to the rear wheel drive, and the other lever will control the amount of lift required to overcome the situation of getting stuck.

Actual working of the gear will take place when the car gears are adjusted in neutral. Settings will be so done in the way that the jacking levers will operate only when the car gears are adjusted in neutral gears. Once this gear has been set into neutral, operation of jacking levers will take place. As mentioned above, the 2 sets of a gear will be responsible to activate the movement of the jacking gear where as other will be responsible to give the lift. Now the first lever will be set in a position to activate the jacking medium which will stop the movement of the shaft given to rear wheel drive while using the movement to operate the worm gear transmission. Once the worm gear has accepted the movement and started to move, second lever will be used to provide the desired lift to the car.

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