'71 spider-- hasn't moved since '89. I am assuming i will end up rebuilding all the calipers but really wanted to know what else may need it as well. The pedal was rock hard. BAcked off the nuts on the MS and pedal moved. Pulled MS and was able to easily move it by hand. drained & cleaned MS and reinstalled. was abled to get pressure to rear brakes so I bleed them. Very dirty. Looked like Coke. Now for fronts. Cannot get any fluid to fronts at all. Disconnect brake line at MS and MS works perfectly. Disconnect brake line at disc and get nothing. Can a brake line get clogged? I have never seen this but i must admit I have only worked on one other car that was dead for this long. At this point I will try anything. They say never introduce air into a brake line but i am considering trying to blow them out. Any ideas?