I've never liked the idea of cutting the mounting wings off a perfectly good servo just to fit it into an RC Formula1 pan-car. This mount for the Tamiya F104 Pro (and F104W and F104X1 probably) means that a low profile servo can be used and secured with bolts and nuts. You'll need to add a few spacers under the ball-studs to allow the steering tie-rods to clear the wishbones. I used the Tamiya threaded ball nuts (part number 53640) and a few M3 spacers on my standard Tamiya HighTorque servo saver.