I have a 95 Del sol S and a whole 95 gsr parts car. I'm swapping the front and rear discs over to my sol. I got a prop valve off of a 94 civic si hatch at the junk yard but it's stamped 30/40 instead of 40/40. It looks like it's an original and the car did have rear discs. I searched all over H-T but have not found any threads about a 30/40 prop valve. Should I just go look for another prop valve?

 

you'll be fine with that piece.