I have a 1955 ford customline fordoor that was originally a 3spd manaul but was later converted to an auto. I'm not too sure if it matters between the two. So I was looking at the brake master cylinder and decided I want to update older parts. If I convert it over to the newer style BMC would I have to run a different brake switch that's connected to the brake pedal? Or would it be easier to replace the older switch and keep the older style cylinder? The first picture is what is currently there. The second one is what I'd upgrade to which you can see has no switch on the end. Thanks again.
If the one on the pedal (mechanical switch) works, leave it. If you change the M/C just plug the hole where the hydraulic pressure switch would sit.
I got tired of buying those pressure switches after 2 or 3 failures. Now I use a cheap motorcycle switch rigged to the pedal and it works great. Many ways to go.
I use a CPP distribution block that has a Ford type pressure switch on my Ford. Summit sells them too. My personal opinion, avoid using combination valves made for more modern cars. Going back to my old dual master conversions, I just used a tee to split the rear and front circuits. I had to replace my pressure switch 2x. The Napa one I had lasted a month. I found some that trip around 25 psi on eBay that work well. I have carried a spare for years now.
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