Changing a flat tire no longer need be a chore if the Newmatic jack is used. The Goodrich jack is a compact, inflatable, textile, and rubber cylinder capable of extending vertically to lift a vehicle wheel off the ground. It is stable and easy to operate. Inflation pressure for most standard-sized cars is in the range of 20-25 psig. The inflation source can be a compressed gas bottle, a compressor driven by the engine, or an electric motor driven compressor plugged into the cigarette lighter. The Newmatic jack can be stored within the spare wheel. In today's automobile with limited storage space and uncertain lifting methods, the Newmatic jack offers the chassis engineer considerable freedom of choice.
