my buddy just called me and doing changeover. i did my 65 so he thinks i know it all. i forgot! he is going with p/brake booster as well-will be p/disc now.i think he needs to change the prop. valve to disc, i used a 74 maverick that i learned here. he has the valve form his parts car.does that need to be changed from 4 wheel drum. how about the master cylinder from drum to p/disc. maybe better here whatall is a must to change to make this work.4 wheel drum to granada power disc.he bought new 70 tie rod ends today also. i think they are bigger and fit the granada spindle?? thanks very much.