The safest way to remove a transmission involves using a special tool, which lowers the transmission to the ground. The lifts can support a variety of weights, often ranging between 1,000 to 3,000 pounds.
A 700r4 transmission is a large unit, often used on older classic cars and pick-up trucks. There are several available variants, all of which increase in size, weight and power capability.
When removing a gearbox, the transmission jack is placed directly under it. The jack is able to extend up to a certain height, at which it then cradles the transmission. When the transmission is released, the jack lowers it down so it can be properly inspected and repaired.