Vehicle wheel suspension assembling and alignment

A vehicle wheel suspension alignment adjustment process in which, before a suspension sub- assembly comprising a pair of spaced apart wheel attaching members (a), a subsidiary frame (2a) and component members of the suspension, is assembled to a vehicle body (1), a sub-assembly attaching position of the vehicle body is measured, a deviation of the attaching position thereof from a reference position thereof is detected, and an alignment adjustment taking this deviation into account of the sub-assembly is carried out so that the resultant adjusted alignment has a predetermined value under the condition that the sub-assembly is thereafter assembled to the vehicle body. This process makes it unnecessary to carry out alignment adjustment of the suspension on a completed vehicle.