break problems

[mark51185]

Ok this might get a little long but i have a 03 sport Trac 4x4 ansd my original problem was my rear breaks were sticking and my truck sits a lot during the winter so I thought the calipers might just be shot from sitting most of the winter so I replaced both rear calipers and the rubber lines in the rear so on to next problem so I went threw blead the breaks and I have good fluid coming out a all four but now I half to push the peatal all the way to the floor to get it to stop I was told before bleading the breaks pull abs fuses witch I did then when I had no breaks I checked the vacume it's fine no leaks so then I blead the master cylinder so still no breaks thought I'd take for small.drive see if got any better so up and down my road a few times I went when I put the peatal to the floor it stops kinda not like it should but it stops but if I pump the break a few times real quick and then hit the breaks it feels normal but if I stay stoped in that spot the peatal slowley bleads down so now I'm lost I was thinking master cylinder but when I drove it a few miles up town when the breaks were sticking I didn't have any problems with the break peatal so now I'm lost on what to do