I am looking for an original brake valve used with 67-69 disc brake cars. This valve is mounted with a bracket to the outside of the drivers side frame rail and has 2 ports. There are a few repops out there that I have had no luck with and would prefer to locate an original. The GM number for the valve was 3908326.
Yes, that is the one. I spoke to them and was told they had originals and would get back to me with a price, I have not heard back as of this reply.
I did however resolve the issue with a 3rd valve that works properly and is made by a different vendor[In Line Tube}. The 2 that did not work and would not allow any fluid to pass through I was told came from the Parts Place. The finish was quite different on the 2, the In line Tube valve has a machined finish, tool marks, sharp edges and is stamped with INL. The valves from the Parts Place has a porous, tumbled appearance/finish
A Big shout out to Ames for helping get to the bottom of this.
A great description of the valve's operation is in this article.