Abstract: An elongated horizontal tire support member having first and second ends is disposed beneath the rear of an associated vehicle chassis including opposite side longitudinal frame members and each end of the support members has an upstanding bore formed therethrough. An upstanding bolt is passed, loosely, upwardly through each of the bores and includes a threaded upper end. One of the threaded upper ends is removably threadedly supported from one longitudinal side portion of the frame and the other frame side portion includes a vertically disposed flange having a generally horizontal smooth bore formed therethrough which parallels the tire support. A mounting member is provided and includes horizontal and vertical flange portions.