Proportioning valve differences

I was wondering if anyone had an idea if a proportioning valve off a 91 civic and a 91 integ are the same. I came across one today and compared to the one in my car and it looked identical. I don’t know I was just pondering. TIA

It depends on if the civic has drum rears or disc. If drums it uses a 30/30 prop valve not sure on if disc but only 90-91 CRX SI came with rear disc but the Integras use a 40/40 prop valve. They look the same but have different insides. Looking at the side where the 4 lines screw in, on the center right there should be a number engraved there.

Thanks I’ll look for it. :up: