brake prop valve May 30, 2018, 08:54:58 PM so... i think i just learned me somethin'the brake prop valve on a v6 is different than the prop valve on a v8!the bottom front fitting feeds the rear wheel cylinders.i have my old stocker v6 prop valve and the fitting and line size for the hole in the fitting is smaller than a prop valve for a V8.in my mind, there is no reasonable purpose for either car to have a different prop valve.both came factory equipped with drum rear only wheel cylinder design.apparently the v8 cars came off the line with a larger rear brake feeder line than the V6,,, which from a safety perspective makes no sense.so... and upgrade to any v6 guys to get more fluid to the rear would be to install a v8 prop valve and upgrade the line that travels back to the rubber flex line above the pass axle tube.thoughts on this........? Quote Selected
brake prop valve Reply #1 – May 31, 2018, 10:21:36 PM well the difference could also be something to do with the 10" optional drums that came on some cars... could be even though they both came with drum rears, my understanding was that it was possible to get 10" vs 9" optioned up. So it may be something that comes as part of that option. Bigger line to better push the bigger shoes? I would measure the diameters on the 2 cars and see if that's the case Quote Selected
brake prop valve Reply #2 – June 01, 2018, 12:14:22 PM Got a picture? Both V6/V8 with rear drums should be the same. Quote Selected
brake prop valve Reply #3 – June 13, 2018, 09:42:31 AM well,, i can take a pic of the two side by side,, but it wont reveal anything.the fitting for the rear is smaller on the V6 than the V8.i think steve is right though,, if 9''or 10'', then that would prob be why ,, Quote Selected
Topic: brake prop valve (Read 1149 times)
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