That would be correct if you are dealing with the "Huck" brakes on the 50 and earlier Chevys----I was assuming that you are working on "Bendix" brakes on the 51 and later GM vehicles. Seems I remember you mentioning a few post back that your truck Has a olds rear end??? Did you replace the whl.cyl. cups or just clean them?The fact that the pressure releases when you break the bleeder screw leads me to believe now that the whl.cyl. is binding. This will sound stupid but I had the same problem once and found when I reassembled the whl.cyl causing the trouble, I put one of the pistons in the wrong direction--hehehehe...Paul
