Okay I have a 1967 289 Couple with a C4 transmission and it has the ancient method of stopping (press and pray) with Drums all around. I want to upgrade to power disc brakes in the front. I see I have to buy a disc brake conversion kit and then a power master cylinder seperate. This kit runs for like $1200 but my thing is there is a seperate one for an automatic and a manual trans. What would I ever do if I want to put a 4 or a 5 speed in my car? Do the disc brake kits really matter on what tranny you have? Anyone else do a conversion like I'm looking to do and if so home much did you pay?