Dual Master cyl.-?

[53coe]

I am planning to replace my dual master cyl. that I put on my 59 20+ yrs. ago, I think it was for a AMC Ambassador, not 100% sure, I was wondering if anyone has come up with a better unit over the years. I have the power brake set up under the dash, where can I get a rebuild kit for it, I did it about 20+ yrs. ago also. Thanks, Wayne, in Fl.

[WILLS RESTORATIONS]

Use a master for a 1967/68 cadillac fleetwood w/4 wheel drum brakes. You will need to reroute the brake lines as the caddy lines come out on the fender side instead of the engine side like the amc cyl. Also, the caddy cyl. Is a larger bore giving more pressure and faster brake response. Hope this helps.
Bill

[53coe]

Thanks Bill, I'm on the fence about changing over to disc, I may try this 1st., thanks, Wayne

[Ford Only]

Almost any early dual cylinder Ford Master cylinder will work and lines go in on the fender side.
When I need one I just go to Auto Zone and tell them I need a master Cylinder for a 1968 Mustang, you can get a drum/drum or disc/drum one. You want the small bore 1" unless you have power brakes.

[53coe]

Thanks Ford Only, it has power brakes, BUT it does not seem to really help much, not like the 70's Fords. You say the smaller bore 1", I was thinking, the bigger the bore the better, is that correct,-?, thanks again, Wayne in Fl.

[WILLS RESTORATIONS]

The bigger bore increases line pressure thereby giving a faster response at the wheel cylander. That is the reason i changed from the amc master to the cadillac unit. The bendix power unit used in 56-59 only decreased foot pressure to the master. It did not increase brake actuation and response. Hope this helps.
Bill

[Ford Only]

I have used both the 1" bore and the 1-1/8" bore with a power booster and never really felt much difference. You can Google the question and get more answers, in short the smaller the bore the less foot pressure its going to take to stop.
On you thoughts about disc brake conversion, I would not do it unless you are going to run radial tires. The stock drum brakes will lock up the original size bias ply tires, disc brakes will only lock them up faster. I converted a 60 Thunderbird and a 59 Skyliner to disc brakes and I find that it is very easy to lock the wheels up with the 8.00 x 14 bias ply tires. I used radials on the Skyliner for awhile and it stopped great but I kept having problems with the tires so I went back to the bias ply tires.

[53coe]

Thanks Bill, so that is why it never really felt like power brakes!!!!, I went thru everything on the brakes back when I restored the car and when I drove
it for the 1st. time, I thought the brakes really SUCKED, LOL, so the bigger booster that goes under the hood would be much better. Thanks, Wayne

[53coe]

Thanks for the reply Ford Only, I did have radials for about 10 yrs., but then put on the wide whites, 800 x 14, but I never have been able to lock up ANY of the wheels, when I restored the car, I put on new everything, wheel cyl's, drums, shoes, lines, AMC dual master cyl, rebuilt the power unit under the dash and the brakes were never that good. I'm near Tampa, Fl. and I have to get on some major hwy's here a lot and I just go with the flow, 60-70MPH, it takes ALOT to get the Ford to stop!!!!!! I have been looking around, it seems that a 10" disc will work OK, not 100% sure yet, I will do a test fit with one of my wheels next week. There is 1 show I go to weekly, 3 lane, about 15 traffic lights about 1/2 mile apart, I think the disc would be much better for that kind of traffic, thanks, Wayne, if I get the disc to work, I'll post it!!!!

[53coe]

Does anyone know what model, year-?, brake booster will fit under the hood, I will be running 10" disc up front with the orig. stock 14" wheels, I will be taking out the bellows assy. under the dash. I will be taking a lot of pic's and will have part #'s if any one wants to know more about my set up with the stock wheels, thanks for ALL the reply's, I read them all, NEVER to old to learn!!!!!, Wayne, sunny, Fl.