They're probably gabriel hijackers. I think Ma Mopar owned some stock in that company as I've never owned a B body that didn't have them on it when I got it. My 67 has a ring around the filler valve that says 25 psi max, though I've put in twice that sometimes. They usually blow off one of the plastic lines when overdone. An easy fix. Hoep it helps - Joe ************************************** See what's free at http://www.aol.com. [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.