I've read 'till my eyes hurt, but mostly theory, and most posts tell about everything that they tried and failed with and very little about what actually has worked for them. Am I to believe that most on here have very poor bbraking after the "upgrade"? Here are my specs: 1990 w/ factory MC (not hydro) Factory Prop Valve D60 Front W/ new Calipers 14ff Rear W/ Front calipers off of my 1/2 ton 10 bolt I have read before that this combo has worked as is for some. I am still waiting on my d-shaft so I haven't driven it yet, but I have bled the system over and over and get good flow from every bleeder. My front Pass Bleeder gets a bubble from time to time, but otherwise, clean clear fluid. With the engine off I get a hard pedal that holds. When I crank the engine I get virtually no pressure and the pedal goes to the floor. Has anyone run a similar combo? Has it worked for you? If not what changes were made to make it perform better?