is this an easy job? whats nessacary? i thought about installing a line lock and since im that close to the brakes, it may be nice to switch. will i notice an improvement in braking? (4 drums with power brakes)
single to dual master cylinder
- Thread starter Cobain03
- Start date
ultrastang
Founding Member
You'll have to do a little brake line fabricating, because you're adding another (separate) bowl. You may or may not gain anything in stopping power, but the main thing is your getting rid of a dangerous single bowl MC.
Unless you are planning to drag race, there's not much reason to install a line lock if the car is just going to be street driven.
Unless you are planning to drag race, there's not much reason to install a line lock if the car is just going to be street driven.
either my brakes are too strong (highly undoubtable since they are drums) or my transmission is really out of wack. i cant power brake and if i try to spin from a stop, sometimes it spins, but most time it just goes.
HookandLadder
Founding Member
If you go with a dual you will have a proportioning valve that will help with the front to rear brake adjustment and help with the burnout problems. Try that before putting in the line loc.
dennis112
15 Year Member
The dual MC will not improve the feel of your brakes if your current brakes are up to snuff. You do gain a margin of safety though.
Do an advance search. Use "dual master cylinder" for terms and "dennis112" for poster. Lots of info on parts and such. Here are a couple of the threads:
http://forums.stangnet.com/showthread.php?t=609440&highlight=dual+master+cylinder
http://forums.stangnet.com/showthread.php?t=657382&highlight=dual+master+cylinder
I don't think we included a line loc during any of the discussions, but I installed one on my car so the info is available. You do not need a new distribution block nor a proportioning valve with 4 wheel drums. Simply remove the line that goes to the rear an it will be run directly to the MC. Run the front brakes into the line loc an then into a distribution block to separate the llines. The front brakes can still use the same distribution block if you plug off the port that you just disconnected. There are special plugs available to do that. You could also replace the block with a "T" available at any good autoparts store, if you desire.
If you use a Hurst or a Summit line loc (appears to be the same,) you won't need a distribution block at all as it has multiple outlet ports to run your front brakes. Just route the front brake MC port into the line lock and then use 2 ports as outlets. If you wanted to, you could use a single outlet and run it to what ever distribution block you choose. Order the Summit line loc installation kit and it will have all the tubes and fittings you will need to do the project.
A proportional valve (typically adjustable) is not needed with drum brakes.
By the way, you will need a tubing double flairing kit, a good tubing cutter, a flat file, and an assortment of tubing bending tools in order to have a successfull outcome.
Do an advance search. Use "dual master cylinder" for terms and "dennis112" for poster. Lots of info on parts and such. Here are a couple of the threads:
http://forums.stangnet.com/showthread.php?t=609440&highlight=dual+master+cylinder
http://forums.stangnet.com/showthread.php?t=657382&highlight=dual+master+cylinder
I don't think we included a line loc during any of the discussions, but I installed one on my car so the info is available. You do not need a new distribution block nor a proportioning valve with 4 wheel drums. Simply remove the line that goes to the rear an it will be run directly to the MC. Run the front brakes into the line loc an then into a distribution block to separate the llines. The front brakes can still use the same distribution block if you plug off the port that you just disconnected. There are special plugs available to do that. You could also replace the block with a "T" available at any good autoparts store, if you desire.
If you use a Hurst or a Summit line loc (appears to be the same,) you won't need a distribution block at all as it has multiple outlet ports to run your front brakes. Just route the front brake MC port into the line lock and then use 2 ports as outlets. If you wanted to, you could use a single outlet and run it to what ever distribution block you choose. Order the Summit line loc installation kit and it will have all the tubes and fittings you will need to do the project.
A proportional valve (typically adjustable) is not needed with drum brakes.
By the way, you will need a tubing double flairing kit, a good tubing cutter, a flat file, and an assortment of tubing bending tools in order to have a successfull outcome.
Shakin66
Founding Member
I have a 84 Mustang SVO master cylinder that I bought for my 66 but the Baer kit came with theirs so I never used it other than bench bleeding and mounting. So if you want it let me know $25.00 plus shipping. I disagree about not needing a line loc for the street but I guess I dont need 400+ H.P. for a street car either so maybe its just me. I love mine and you can get it off ebay from a Granatelli fairly cheap.
Either way loss the single bowl.
Either way loss the single bowl.
cobain, the dual mc swap is fairly easy to do. i did it with my 64 falcon. i used a drum/drum mc from a 67 mustang, a few short lengths of prefabbed brake line, and a few couplers, an done T fitting to actuate my brake lights(that falcon uses a hydraulic brake light switch). since you are working with a mustang, you just need one line, one coupler, and one plug. you dont need a proportioning valve since you have 4 wheel drums. you can install a line lock in the front line if you choose, since you are changing the system already. the plug goes in the stock distribution block where the rear line goes, by the way.
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