This is a very easy swap and one I would recommend. I swapped my single master cylinder for a `67 Mustang dual. Took an afternoon and a few trips to the parts store for tubes and fittings. I broke the bleeders off both the rear wheel cylinders so just replaced them. Also replaced the two lines from the rear "T" to the wheels. Put new bleeders on the front but should probably replace the entire cylinders next year.