Duster master cylinder fitting size

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gumper

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I'm trying to put the rear line lock on my Duster, but the master cylinder fittings are much larger than the fittings and adapters that came with the kit. Anyone know what size flare fittings these are?
 
The nuts in the car are not "standard." There is only one "standard" flare fitting for 3/16 line. All manufacturers did this, and it's to keep assembly line people and mechanics from mis-plumbing the lines.

It used to be a "big mess" back in the days of hydraulic operated trailer brake controllers. I'd guess we used to stock at least 8 different adapter tees to try and cover it. Some nuts are same diameter, but different thread pitch.

Only thing I know for certain is hit a junk yard or cut your existing lines and chance re-flaring them.

"Some" place some suppliers used to sell up/ down adapters from one size to the next
 
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