You just need to install a power brake booster between the master cylinder and the firewall and then supply vacuum to the booster. I would recommend you hit the salvage yards. They will be able to sell you all you need. This is a very simple conversion.
chiltons manual from the library.
Go to NAPA and buy a Repair Manual.
When changing anything, concerning wiring on a car, it is important to have a diagram. A wiring diagram for a 1993 Plymouth Sundance can be found in its maintenance manual.
When changing brakes, a diagram will help the person make the correct changes. A diagram of the rear brakes on a Chevy 3500 will be found in its maintenance manual.
Get a manual on your car from AUTOBOOKSONLINE.COM and it will take you through it and keep you from messing something up.
Get a Bentley manual
When changing the brakes a diagram can come in handy. A rear brake diagram can be found in the specific car repair manual.
If you are changing the timing belt you need to get a shop manual on your car from a parts store. It will show you how and have pictures.
Buy a manual at your auto parts store for your vehicle. It should have step by step instructions and picture for changing brake parts.
The 1967 Ford Mustang had hydraulic brakes
To get an owner's manual at a cheap price, would be on Ebay. Just type "Plymouth Voyager" and you'll get results. Hope this helps.
With a manual transmission you downshift to slow down in situations where in an automatic you would have to use the brakes. Using brakes more = brakes wearing faster.