One ton with Manual brakes?

[kaputafj]

Anyone with a one ton and manual brakes: front disc/rear drum??

[Getter-Done]

My 1 ton has Manuel brakes with drums front and rear.

[binford]

My 68 had manual and it was a real b i t c h to stop.

Problem solved by installing the correct master cylinder.

They have 1" for manual and 1-1/8" for power.
The bigger the piston the harder you have to push.
I have 1-5/16 on the 73, but I installed a hydro boost master cylinder.

If you want the best braking power go hydro, provided you have power steering.
My 68 was manual everything

[kaputafj]

@binford - thanks. looking to ditch hydro and go manual. Was your system originally manual front discs/rear drums?

[binford]

No disc brakes. Drum front and rear.

With disc brakes you need move volume of fluid. Just look at the size difference between a drum brake slave cylinder and disc brake caliper, it's like twice the size in diameter.
With front disc and a manual master cylinder you will have a longer brake pedal travel to push the volume of fluid needed. They increased the master cylinder piston size to keep the pedal travel the same, but then needed to add a vacuum booster to help with how hard is was to push the pedal.

The master cylinders are interchangeable and cheap. You will notice about an 1" of extra brake pedal travel with disc and a manual master cylinder.
Normally you have about 3" of travel and now you will have 4"

[Steeveedee]

Originally Posted by binford

No disc brakes. Drum front and rear.

With disc brakes you need move volume of fluid. Just look at the size difference between a drum brake slave cylinder and disc brake caliper, it's like twice the size in diameter.
With front disc and a manual master cylinder you will have a longer brake pedal travel to push the volume of fluid needed. They increased the master cylinder piston size to keep the pedal travel the same, but then needed to add a vacuum booster to help with how hard is was to push the pedal.

The master cylinders are interchangeable and cheap. You will notice about an 1" of extra brake pedal travel with disc and a manual master cylinder.
Normally you have about 3" of travel and now you will have 4"

I disagree. If the drum brakes are adjusted correctly and the front wheel bearings are tightened correctly (loose wheel bearings will cause the calipers to move away from the rotors, causing a longer pedal stroke to take up that gap on the first application), the only movement is due to taking up free pedal. The reason for a larger reservoir on a disc brake system is to make up for the loss of pad friction material as they wear, between brake jobs.

[kaputafj]

So what I'm trying to find is a stock system so I can find a stock master cylinder to use rather than do all the math myself and make educated guesses.

[binford]

Originally Posted by Steeveedee

I disagree. If the drum brakes are adjusted correctly and the front wheel bearings are tightened correctly (loose wheel bearings will cause the calipers to move away from the rotors, causing a longer pedal stroke to take up that gap on the first application), the only movement is due to taking up free pedal. The reason for a larger reservoir on a disc brake system is to make up for the loss of pad friction material as they wear, between brake jobs.

The stock master cylinder are all the same reservoir size.
Im not talking size of the reservoir, I was talking about the the piston size inside of the master cylinder.

[Steeveedee]

Not all reservoirs have the same size for front and rear brakes, though many do. You are correct about the bore size.

[stsalvage]

Never could understand why people back in the 60's -70's did not pay the extra 40.00 for power brakes and steering.It makes like that much easier

[Steeveedee]

Originally Posted by stsalvage

Never could understand why people back in the 60's -70's did not pay the extra 40.00 for power brakes and steering.It makes like that much easier

Maybe because when the engine quits, it's suddenly way harder to stop and steer. Just a thought.

[binford]

https://www.speedwaymotors.com/Unive...Bore,4316.html

I looked and it's hard to find a 1" bore
Didn't try NAPA

Says for drum disc

Good luck