K-H brake swap done, but doesnt stop!

mopower440 said

well, got them rebuilt, but never again! I will use them for the time being but will be looking for some 1973-76 A-body calipers, rotors and spindle/hub so next time these calipers need rebuilding, i will swap it all out for the single piston style. I fought with thise damn dust boots till i was blue in the face, trying to get them to stay put while installing the pistons..what a pain in the rear! FINALLY got them done.

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Got it all back together, new disk brake MC and all only to be severely let down! I can make it lock up now, but i literally have to stand on the damn pedal!! What a let down..The drums worked better and wish i would have left them on there! Cant believe how much force i have to put on the brake pedal. Also, when bleeding the brakes, i couldnt get any fluid from the rears for some reason..? Fronts bled out fine..any ideas?