This subject seems to come up alot on the HAMB, "How do I fit hydraulics to my Model 'A' ". Hopefully this should show how to fit said brakes the CORRECT way. My Model 'A' came already fitted with hydraulic brakes, but the more I studied them the more things I noticed were wrong with the way they were fitted. The true horrors weren't discovered until they were actually removed from the car. I decided the best way forward was to start again with a fresh set of backing plates. Here is your basic '39-'48 Ford backing plate. In this case they are the later '46-'48 plate as they have the riveted rather than bolted bottom pivots. You will also need the correct hubs and drums as the original 'A' ones will not work with the hydraulic backing plates. We'll start with the fitting of the front brakes first. This is the stripped hub. You'll need a front fitting kit which consists of 2 bearing spacers and two backing plate spacer rings. You can see how these are mounted to the hub. Take care with the backing plate spacers as they are cast iron piston rings and will break easily if forced. The Model 'A' has a smaller backing plate stud spacing. There is two ways you can approach this: 1. Elongate the original hole in the backing plate. 2. Plug the original holes and re-drill them for the Model 'A' stud pattern. I choice the second as I believe this to be the correct way. You can see in the above picture the now hole-less backing plate. A plug was cut from 3/8" steel rod and then plug welded both sides and ground smooth making sure not to remove material from the mounting surfaces. Now is time to re-drill the mounting holes. You can get complicated here and have it all set up on a rotatory table on a mill or do what I done and just mark it from the back! The backing plate was masked with tape and placed on the hub. With the backing plate mounted to the hub, making sure that the wheel cylinder is at the very top on the vertical, mark the position of the holes with a 3/8" drill bit, this will be your final hole size. Use a drill press as this way you will have a nice straight hole. You should find that the backing plate sits flat making it easy to clamp down. Use a small 1/8" pilot drill hole, double check everything and then keep enlarging the holes until you finish with a 3/8" hole. If you find that its gone wrong somewhere, simple plug weld the hole and start again. The finished article. Notice how close the holes are to the edge? Thats just the way it is I'm afraid. If everything is correct it should all bolt up. Complete the assembly of the brakes and its job done. A little tip when assembling the brakes is to cover the shoes in masking tape. This stops the shoes getting covered in grease, oil and God knows what else. That completes the front brakes and finally an example of how not to do it. Yes these are what were originally fitted to the car.