Replaced my brake lines when I put the lift on and ever since I've had brake problems. I've bled them half a dozen times and currently get no air out when I bleed. The brake pedal will start out hard, than slowly sink, I pump it and it gets hard again, but if I hold it down, it will eventually sink to the floor. Time to replace the master cylinder? <img src="/forums/images/graemlins/confused.gif" alt="" />

84 Ext. Cab Pickup.