Hydraulic system actuated to provide smooth, postitive power for the removal and installation of single, tandem and duplex tires. Lift arms can be adjusted to handle different wheel combinations. Lifting range: 2-1/4"-11", Lifting arm dimension: 25-7/8"x25-1/4", Tilt range 2.5"-10", 43-1/2"L x 43"W x 34-7/8"H, 183 lb