I have this proportioning valve that came in a GM box. The part number is worn off on the box, so I am not sure of the part number. The two female threads for the brake lines are 3/8". I was told that Corvettes and other GM cars use bigger lines and that all 3/8" are for Fords. Are there any GM cars that use the 3/8" lines? If so does anyone happen to know the part number? It'* possible this part just isn't in it'* correct box, but I have no reason to believe this is the wrong box.

Any info. on this would be appreciated. I have attached a couple of pics.

Thanks

If still available, Im looking for one. Fits my '66 Gt Mustang. Disk in front. Drum in rear! Mine is rusted. Can't get it open to rebuild.

The last post in this thread is over six years old and dmbarkley34 hasn't been back since. I doubt you'll see a response. Based on the site rules, it shouldn't have been posted there in the first place. I guess none of the moderators caught it at the time. Please refer to https://www.gmforum.com/introduction...-first-304557/ for more details.

Thread closed.