Manual steering to power

Finding a low mileage car with all the right parts in the junk yard is getting nearly impossible, even here in California. Up until a few years ago that would have been an option, not anymore. Even then it would have been difficult to find a small sector box, as most of the cars that end up in the yard were the later 73+ cars. And of course you always run the very real risk that the steering box will need a rebuild anyway, so you just bought a core.