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View Full Version : do i need a new proportioning valve?


camaroracer1992
11-29-2005, 01:37 PM
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

Savage_Messiah
11-29-2005, 01:57 PM
im gonna guess yes with a 3rd gen but thats all I know about that

V
11-29-2005, 09:27 PM
just get a stock one for a 3rd gen with 4 wheel disc brakes

9secfirebird
11-29-2005, 10:22 PM
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

camaroracer1992
11-30-2005, 08:38 AM
any one have any for sale??? will a lt1/ls1 prop valve work too? are the fittings the same on there?

Tru2Chevy
11-30-2005, 10:05 AM
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

9secfirebird
11-30-2005, 08:36 PM
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.

BonzoHansen
12-01-2005, 12:53 PM
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.

9secfirebird
12-01-2005, 03:12 PM
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.

camaroracer1992
12-01-2005, 03:40 PM
any advantage to a 4th gen master cylinder? if not ill just stick with the thirdgen

BonzoHansen
12-01-2005, 08:34 PM
No advantage I can think of. Get a 3rd gen disc/disc master.

9secfirebird
12-01-2005, 09:02 PM
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.