I'm looking at getting a CNC 412 staging brake (the kind that allows street driving) and would like to install it without cutting and flaring my rear brake lines.

Is there any way to just get a fitting that will allow me to unscrew the stock flare nut from the prop valve or rear wheel cylinder and screw in a "T" that allows re-installation of the factory line but also the new line for the staging brake?

Am I making myself clear or convoluted?

 

I have no clue about the 412 brake setup, but you can rent a double flaring tool set at most parts places, if you dont have one, and not hard to use.

 

I'm perfectly capable, and actually already have flaring/cutting tools, but I would like to keep my factory lines intact if possible.

I'm just wondering why no one screws a "T" in before the rear wheel cylinders and runs a line to them from the 412. Seems straightforward unless I'm missing something.

 

I'm sure a "T" would be a straight forward setup if there were a fitting on the market that would work for what your thinking, but there really isn't anything on a shelf that would work without making a bunch of adapter fittings and short pieces of brake line to get it all connected.
I think most guys just go for the cut and flare for cleaner install without needing to run more line to the prop valve or wherever, then add a ton of unions and fittings.

When your talking modifying engines and suspension and turbos and what not flaring a brake line is a cake job and sacrificing an oe line is acceptable.

Just my $.02, if you want to make it work go hit the parts store and get creative.