67 travco - Need brake part #s for P375

[SavedByGrace]

Hi - can anyone shed some light on the part numbers required? We bought a 67 and got the motor going, it has the two hydravac boosters and MC under the seat -


Last time the motor sucked in a bunch of fluid so we need to replace -


Im new to the chrysler system but some reading has indicated one has to search by frame/chassis not model of the rv, ours has a P375 stamp on the plate, I couldnt seem to find much other than this is a poly engine on a M375 chassis - is this correct?


Thanks in advance


Here is a pic of our boosters, can anyone recognize them?