Does any body know if the threads (fittings) on the lines that go from the master cylinder to the proportion valve are the same for 1989-1992?


From what I've read so far in this forum, is that the only difference between the disc and drum proportion valve are the spring located inside, if this is true, and so long as the threads are the same for 89 thru 92, one can use an 89 proportion valve on a 92 car, since there seems to be no more proportion valves for 92 models.