abodyjoe
Well-Known Member
you may be ok than.. i could have sworn my 64's had the rod bolted in.. maybe they changed it by 66.
Thank you Joe, This info should get me some where, if the plate is $35-40 and my rode will work like 66340SEADAN's did it could be worth the extra cash, but I am going to see if I can get a 67-74 drum MC in my hands and see if my push rod will workthink the adapter goes for $35-$40 at RMS. don't see it by itself on the site but i know he sells them..
Thank you ElFin, That is what he said about the 10 lb in the pm he sent me.Large bore MC will require less braking effort from the driver.
FYI, the difference between drum and disc brake MC's is the residual pressure valves. The valves were 10 psi for drums and 2 psi for discs. The older style wheel cylinders for drums required this in order to keep them in position for use. A long time ago they began to put springs into the wheel cylinders, so the residual pressure valves became superfluous. If you have the original wheel cylinders in the car the valves are necessary. The proportioning valves were to keep the rear drums from locking up before the front discs. In a non-hybrid system they are not necessary. There is also a metering valve or hold-off valve on some hybrid (drum/disc) systems to keep the front discs from deploying until enough pressure builds up to engage the rear drums- a good idea for getting all four wheels to contribute to braking.