Lifting jacks raise vehicles or vehicle components and hold them aloft to aid maintenance operations. Service jacks lift a portion of the vehicle frame. Component jacks lift heavy engine parts up and away from the vehicle. Jacks lift using hydraulic, electric, manual, or mechanical force. Jacks have either lifting shoes or saddles that make contact with vehicles. Shoes are designed to match one specific lifting point while saddles are wider plates that lift on many points for extra security. Jack accessories for vehicle jacks include adapter kits and sets to ease vehicle component removal and replacement.