I wouldn't trust the reservoir cap in post 1 to seal any better than a 1970's Dart MC (looks similar), plus I find cast-iron heavy and rust-prone. With a $30 2 to 4 bolt adapter plate (ebay), you can use many modern aluminum MC's w/ tight-sealing reservoir. They also have a low-level sensor you can wire in parallel w/ your e-brake dash lamp. I used one for 95-99 Breeze/Stratus ($25 new). Dr Diff sells the plate & MC for ~$95. Get the smaller bore option for manual. Linked at least once a month, but I'll show again since that apparently isn't enough.
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