hey guy's i'm stumped.. i have a 94 k1500 suburban changed the back Cylinder's now i got back breaks..but the problem is that now my break peddle is soft..before this they where medium..now if i step hard on the breaks the front driver side locks up(abs)so i bleed them the x pattern and got all the air out ..but still the same with the peddle now do i need a master?.or do i need to bleed the abs?.