Dual Master Cylinder plumbing

I am installing a new dual master cylinder from Classic. After mounting the cylinder, does it matter which port goes to front or rear brake lines. Something is telling me that the forward most port goes to the rear brakes since the cylinder is mounted push rod forward. Any thoughts?
'50 3600.
Thanks

 

If you are running front disc brakes and rear drum brakes then you need to use the larger reservoir for the discs, if in fact your master has a larger reservoir, which usually is in the front. If you are running 4 wheel drum brakes it doesn't matter.

 

I am running drums all around. Both reservoirs appear the same, pretty big

 

Most systems run the back reservoir (closest to firewall) to the front brakes. But in reality it doesn't matter since both reservoirs are the same.

 

Dual M/C Plumbing

Actually ;

You'll notice by the pictogram that the smaller resivoir is always the disc one .

 

On a drum - disc dual master cylinder the bigger reservoir feeds the disc. I've posted up a larger photo below Note the diagram states "drum" for the small reservoir and "caliper" for the large reservoir.

Drums have small slave cylinders, discs have large pistons, that's the reasoning behind the small vs. large.

Not that any of this matters to coralhead, as he is doing a drum - drum set up. But it might help somebody surfing this thread in the future.

Ever heard of drilling drums? Check this out: http://www.chtopping.com/CustomRod4/

and finally a link to CH Toppings website, more good braking articles there: http://www.chtopping.com/Home/index.html

 

Great Post !

Thanks for sharing lakeroadster.This post is very intresting. It does`nt say on what distance the holes pattern should be bored and what bore size to use ?

Martinius.

 

Email chtop@earthlink.net, I am sure he would tell ya. Then you could pass the info on to us.

 

Reply

Lakeroadster. I texted him an e.mail today. Thank you.

Sir

Classic chevy and GMC truck owners have been reading your thread with most intrest and the guys wonder what bore pattern you use and bore size ? What are your experiences after using this solution ?
If it is ok with you i would like to publish your answer at the classic chevy forum. https://talk.classicparts.com/showthread.php?p=92641#post92641

Sinc. Martinius Berg