Mr. Bill 0 Posted July 17, 2008 (edited) Can anyone tell me what the air connections are for an E3 basic brake valve for a 1968 Mack R-685T single axle tractor? I did the dumb thing of disconnecting and didn't take notes. Now a year later I don't remember. Should have taken a picture. Got it figured out today so problem solved. Edited July 17, 2008 by Mr. Bill Quote Share this post Link to post Share on other sites
