do i need a new proportioning valve?
 

i have a 92 rs that was a disc/drum combo. i put the 00 up style disc brakes on teh rear of the car when i swapped in my ford 9 " rear. do i need to change the proportioning valve to maximize the brake usage? also what one should i use with teh minimal issues with fittings, adaptors, etc?? thanks

im gonna guess yes with a 3rd gen but thats all I know about that

just get a stock one for a 3rd gen with 4 wheel disc brakes

yea you need to change it. a 1LE prop valve will do the trick, but if ya need any old one just grab one out of a 4 wheel disk car and youll be just fine.

mike

any one have any for sale??? will a lt1/ls1 prop valve work too? are the fittings the same on there?

No, you will need a thirdgen one if you wanna keep the same lines...

- Justin

they dont have prop valves, they go in through the ABS system and its distributed through there, gotta find one from a thirdgen or a GM dealer, maybe GM parts direct has one.

however, an LS1 master cyl will work on your booster, it looks a hell of a lot nicer too.

You do need a prop valve and a master cylinder. You should be fine with stock 3rd gens ones. Get the ones listed for your 1992 model. Your booster should be fine. I see no reason to mess around with the 4th gen parts.

i used a ls1 master cyl, its the same, just looks alot nicer. as i said, its just a choice. thirdgen one is great too.

any advantage to a 4th gen master cylinder? if not ill just stick with the thirdgen

No advantage I can think of. Get a 3rd gen disc/disc master.

no advantage other than its not ugly like the stock thirdgen one. different resivour and the master cyl itself looks different, it just looks better, cleaner, thats all.