'68 dual mc work w/ Granada disc swap

[68converted]

I searched the threads and could not find the answer. Can I use the "original" Master Cylinder for the swap and just install a proportioning valve? If not, has anyone used the early 90's fox power MC? how tough is the swap?

 

[STSFCTN67]

I used the origianal MC with a proportioning valve for the rear.

 

[streetgrande69]

If you had drums up front, you can't correctly use the same master. You can use the mid 90's m/c, but its got to be around the same bore size, smaller will make the brakes touchier.

A drum circuit has a residual pressure valve in the master under the brass insert the fitting seats on. It’s just a small rubber check valve with a small spring.
Your best bet, if you have drums in back is to get the disc/drum m/c for your ‘67. It’ll bolt right up. You do need a metering device of some type weather it be adjustable (not my favorite) or just the correct proportion valve set-up for any car (Granada is a good choice) about the same weight as yours.

 

[68converted]

Thanks, I think I am going to go with a MC and powerbooster from a late model. I will have to use an adjustable pedal rod unless I get lucky and find one that will work ok. I got an email from a guy off of corral, that the booster from an 91 Taurus and the MC from an Bronco II will fit together and is a "perfect fit" for original pedal height. I am heading over to the salvage yard for the booster and to Pep Boys for the new MC. Don't want to mess with ajunkyard MC, and shoot, it's only $45 bucks. I will post a pick and performance info on the swap at a later date. Thanks again.

 

[68converted]

Well, I went to the salvage yard and it was a no go on fit. I picked up a 1980 Granada Disc/drum Manual MC and it will work. I just switched out the pedal rods as the Granada's rod was almost 3/4" too long. Thanks for the help all. As always you rule!