monte70z20 Posted August 25, 2019 Share Posted August 25, 2019 I'm trying to figure out if my car has both of these? I have 70 and I can see the distribution block mounted on the frame just below and to the rear of the vacuum booster but i can't find a proportioning valve. Did the 70 Monte Carlo (Front Discs, Rear Drums) come with one or both of these or does the Hold Off Valve connected to the front Master Cylinder Brake line eliminate the Proportioning valve? Quote Link to comment Share on other sites More sharing options...
714024SPEED Posted August 26, 2019 Share Posted August 26, 2019 The block mounted to the frame is the proportioning valve the one on the master is on 70 Monte's only and is a type of hold off valve.here is a picture of the proportioning valve. Quote Link to comment Share on other sites More sharing options...
Rob Peters Posted August 26, 2019 Share Posted August 26, 2019 The link below will take you to a general picture of how the positioning valve is mounted on a 70 Monte. If I am not mistaken, the 71/72 is a different setup. rob https://www.google.com/shopping/product/6345283411571227446?q=1970+monte+carlo+brake+system+parts&client=tablet-android-samsung&biw=768&bih=1024&tbs=vw:l,ss:44&prmd=sivn&prds=epd:14381904755273157471,paur:ClkAsKraX_ilYX9KpXRs77J8Z1T4Xs0wcVJGayDBxVOvxwSBllSX7jHF7w1tou2XZUxojHoAT6cqKqBrDhzCeYYvd2V38yYtmbMLIi5My0dm0XInE90sJQfzCRIZAFPVH71L0qxtQdaXwr2gipltxrxxCPzGAA,cdl:1,prmr:1,cs:1 Quote Link to comment Share on other sites More sharing options...
MC1of80 Posted August 26, 2019 Share Posted August 26, 2019 All first generation of Monte Carlo have the proportion valve on the frame. Only the 70 has the hold off valve bolted to the master and booster. I believe later 70s do not and are like the 71-72 . Quote Link to comment Share on other sites More sharing options...
monte70z20 Posted August 27, 2019 Author Share Posted August 27, 2019 My monte looks like the parts at the two sites below. I believe it is a distribution block not proportioning valve and the master cylinder setup pictured below. I can't see a proportioning valve unless it's somewhere under the car. Thinking the 70 has this setup and 71-72 had the proportioning valve and no hold off valve and distribution block. https://www.inlinetube.com/products/pr106?variant=13202388058173 https://www.inlinetube.com/products/dbk7002a?variant=13201558995005 Quote Link to comment Share on other sites More sharing options...
714024SPEED Posted August 27, 2019 Share Posted August 27, 2019 Ok no worries 😊 your car is correct the valve mounted to the frame is a distribution block,what some of us are calling a proportioning valve its a general term . Your car has this because the hold off valve mounted at the master work in conjunction with the distbution block. Quote Link to comment Share on other sites More sharing options...
1970mcss Posted August 27, 2019 Share Posted August 27, 2019 The proportion valve is mounted on the frame. Quote Link to comment Share on other sites More sharing options...
monte70z20 Posted August 27, 2019 Author Share Posted August 27, 2019 Thanks once again everyone for all your wisdom and graphics. Now I can purchase the correct replacement parts for my setup. Quote Link to comment Share on other sites More sharing options...
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