The axle guide has a generally rectangular base having a thickness, a top surface, and an opposite bottom surface, a first end and an opposite second end, and a right side and an opposite left side. The top surface has a lengthwise spine with less height than the thickness of the base. The first end has a threaded aperture receiving a screw which secures a planar gauge. The gauge has its own thickness, generally that of the desired gap between a wheel hub and the car body. The gauge has a generally slotted shape secured by the screw to the first end. The gauge is preferably H shaped or alternately C shaped. The slot of the gauge receives the shaft of an axle.