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1985 dodge diplomat Master cylinder front/rear?

papy

Sr. Member
Joined
Jun 13, 2012
Messages
825
for those of you who are using the dodge diplomat MC on a hydro boost unit can you tell me which port to use for the front disk brakes and which for the rear drums?


as per Cardone website specs

Primary is the rear Port Size and is 1/2 x 20
Secondary is the front Port and is 9/16 x 20

also anyone else having trouble finding a 9/16-20 fitting for a 3/16 brake hard line? it is non existent at sll of the local parts stores. they looked at me as though i was an alien when i asked for that size...
 

badandy73

Contributor
Broncoholic
Joined
Jul 18, 2007
Messages
172
for those of you who are using the dodge diplomat MC on a hydro boost unit can you tell me which port to use for the front disk brakes and which for the rear drums?


as per Cardone website specs

Primary is the rear Port Size and is 1/2 x 20
Secondary is the front Port and is 9/16 x 20

also anyone else having trouble finding a 9/16-20 fitting for a 3/16 brake hard line? it is non existent at sll of the local parts stores. they looked at me as though i was an alien when i asked for that size...

Primary (closest to firewall) is for the front, secondary is for the rears. That's how I've had mine plumbed for awhile now and works great.

As for the reducer, local hydraulic hose supply house who made all my lines had one, 9/16-20 to 3/8-? to match the fitting they gave me on the end of the flex line from the master to proportioning valve.
 
Last edited:
OP
OP
papy

papy

Sr. Member
Joined
Jun 13, 2012
Messages
825
Primary (closest to firewall) is for the front, secondary is for the rears. That's how I've had mine plumbed for awhile now and works great.

As for the reducer, local hydraulic hose supply house who made all my lines had one, 9/16-20 to 3/8-? to match the fitting they gave me on the end of the flex line from the master to proportioning valve.

thanks! i called Carcone and asked the which port is for front/rear. they said the same thing. i posted the info on the wrong thread - the fluid recommendation thread is started lol

found an adaptor as well - think it was the only one in Canada...
 
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