I am a little uneasy at seeing the modifications in cross section thickness of the steering arm and also the thorough heating of it to bend it. What does this do to the original metalurgical intregity of that arm? It will probably hold up under even the worst abuse you can throw at it, but I am not so sure. Also, I don't recall the size of the factory wheel on a 1961 Newport like yours - was it 14" or 15", and if the former, will it clear the calipers? If it is a 15" wheel like the 1961 300G, then you would be OK it seems. Others have made disc brake conversions on 300 Letter cars that have 14" wheels and thereby allow the use of the original wheel covers, but as I recall they used aftermarket kits for this purpose. This has been discussed on the Chrysler 300 club websites in the past. But I believe the braking capacity of those systems is diminished significantly under panic braking conditions due to the relatively small size of the rotors. I personally have not yet seen a real good solution to all the problems that this endeavor brings up. I might be inclined to ditch the total contact brakes since they are a pain to keep operating well, and go to the 1963 single wheel cylinder front wheel drum set up but change to a dual master cylinder for added safety compared to single master cylinders. For my 1960 300F, I have converted the system to the use of silicone fluid after changing out every component in the system that has any rubber type parts in it, and it has worked fine for decades now without the need for service. But it has the single master cylinder still, which I would rather not have, but trying to fit a dual master cylinder into the small area where the cross rams take up a lot of room would be challenging. But I have heard some others have been able to do it. But you wouldn't have that problem with your Newport. Just some thoughts....................