66chry300
New Member
Hi all! Working on a 1966 chrysler 300 for a friend of mine and I am having a lot of trouble with the brakes. This car is 4 wheel drums and I tried converting over to a dual master cylinder, but it is not working correctly. The master cylinder is off a 1967 300 and I have the front port going to the original distribution block. The rear port goes directly to the 3/16 brake line for the rear brakes and I capped it off at the distribution block. The problem is that the back brakes are getting too much pressure causing them to overheat. The front brakes work, but it feels like the rears are doing most of the work. Is there something I can do to try to correct this or should I just replace the master and convert it back over to a single line master? I really would like to have a dual line master on this car but if I am not able to I will just convert it back to original. Thanks for your help!!